: $Id: vecst.mod,v 1.1.1.1 2005/12/15 15:16:40 hines Exp $
:* COMMENT
COMMENT
randwd randomly chooses n bits to set to 1
hamming v.hamming(v1) is hamming distance between 2 vecs
flipbits v.flipbits(scratch,num) flips num rand chosen bits
flipbalbits v.flipbalbits(scratch,num) balanced flipping
vpr v.vpr prints out vector as 1 (x[i]>0) or 0 (x[i]<=0)
thresh turns analog vec to BVBASE,1 vec separating at thresh (scalar or vec)
triplet return location of a triplet in a vector
onoff turns state vec on or off depending on values in other vecs
bpeval used by backprop: vo=outp*(1-outp)*del
w like where but sets chosen nums // modified from .wh in 1.23
dest.xing(src,tvec,thresh) determines where vector crosses in a positive direction
dest.snap(src,tvec,dt) interpolate src with tvec to prior dt step, saves only highest value
xzero count 0 crossings by putting in a 1 or -1
indset(ind,val) sets spots indexed by ind to val
ismono([arg]) checks if a vector is monotonically increaseing (-1 decreasing)
count(num) count the number of nums in vec
scr.fewind(ind,veclist) // uses ind as index into other vecs
ind.findx(vecAlist,vecBlist) // uses ind as index into vecA's to load in vecB's
ind.sindx(vecAlist,vecBlist) // replace ind elements in vecA's with vecB's values
ind.sindv(vecAlist,valvec) // replace ind elements in vecA's with vals
scr.nind(ind,vec1,vec2[,vec3,vec4]) // uses ind to elim elems in other vecs
ind.keyind(key,vec1,vec2[,vec3,vec4]) // pick out bzw. values from vectors
ind.slct(key,args,veclist) // pick out bzw. values from vectors
ind.slor(key,args,veclist) // do OR rather than AND function of slct
vdest.intrp(flag) // interpolate numbers replacing numbers given as flag
v.insct(v1,v2) // return v1 intersect v2
vdest.cull(vsrc,key) // remove values found in key
vdest.redundout(vsrc[,INDFLAG]) // remove repeat values, with flag return indices
v.cvlv(v1,v2) // convolve v1 with v2
fac not vec related - returns factorial
logfac not vec related - returns log factorial
v2d copy into a double block
d2v copy out of a double block NB: same as vec.from_double()
smgs rewrite of sumgauss form ivovect.cpp
smsy sum syn potentials off a tvec
iwr write integers
ird read integers
ident give pointer addresses and sizes
lcat concatentate all vectors from a list
fread2 like vec.fread but uses flag==6 for unsigned int
Non-vector routines
vseed set some C level randomizer seeds
isojt compare 2 objects to see if they're of the same type
eqojt compare 2 object pointers to see if they point to same thing
ENDCOMMENT
NEURON {
SUFFIX nothing
GLOBAL BVBASE, RES, VECST_INSTALLED : bit vector base number (typically 0 or -1)
}
PARAMETER {
BVBASE = -1.
VECST_INSTALLED=0
: misc
ERR=-1.3479e121
: 0 args
ALL=-1.3479e120
NEG=-1.3478e120
POS=-1.3477e120
CHK=-1.3476e120
NOZ=-1.3475e120
: 1 arg
GTH=-1.3474e120
GTE=-1.3473e120
LTH=-1.3472e120
LTE=-1.3471e120
EQU=-1.3470e120
EQV=-1.3469e120 : value equal to same row value in parallel vector
EQW=-1.3468e120 : value found in other vector
NEQ=-1.3467e120
SEQ=-1.3466e120
RXP=-1.3465e120
: 2 args
IBE=-1.3464e120
EBI=-1.3463e120
IBI=-1.3462e120
EBE=-1.3461e120
}
ASSIGNED { RES }
VERBATIM
#include <stdlib.h>
#include <math.h>
/*#include <values.h> /* contains MAXLONG */
#include <limits.h> /* contains MAXLONG */
#include <sys/time.h>
extern double* hoc_pgetarg();
extern double hoc_call_func(Symbol*, int narg);
extern FILE* hoc_obj_file_arg(int narg);
extern Object** hoc_objgetarg();
extern void vector_resize();
extern int vector_instance_px();
extern void* vector_arg();
extern double* vector_vec();
extern double hoc_epsilon;
extern void set_seed();
extern int ivoc_list_count(Object*);
extern Object* ivoc_list_item(Object*, int);
int list_vector_px();
int list_vector_px2();
int list_vector_resize();
typedef struct BVEC {
int size;
int bufsize;
short *x;
Object* o;
} bvec;
ENDVERBATIM
:* v1.slope(num) does a linear regression to find the slope, assuming num=timestep of vector
VERBATIM
static double slope(void* vv) {
int i, n;
double *x, *y;
double timestep, sigxy, sigx, sigy, sigx2;
/* how to get the instance data */
n = vector_instance_px(vv, &y);
if(ifarg(1)) {
timestep = *getarg(1);
} else { printf("You must supply a timestep\n"); return 0; }
sigxy= sigx= sigy= sigx2=0; // initialize these
x = (double *) malloc(sizeof(double)*n);
for(i=0; i<n; i++) {
x[i] = timestep*i;
sigxy += x[i] * y[i];
sigx += x[i];
sigy += y[i];
sigx2 += x[i]*x[i];
}
return (n*sigxy - sigx*sigy)/(n*sigx2 - sigx*sigx);
}
ENDVERBATIM
:* v1.vslope(v2) does a linear regression, using v2 as the x-coords
VERBATIM
static double vslope(void* vv) {
int i, n;
double *x, *y;
double timestep, sigxy, sigx, sigy, sigx2;
/* how to get the instance data */
n = vector_instance_px(vv, &y);
if(ifarg(1)) {
if(vector_arg_px(1, &x) != n ) {
hoc_execerror("Vector size doesn't match.", 0);
}
sigxy= sigx= sigy= sigx2=0; // initialize these
for(i=0; i<n; i++) {
sigxy += x[i] * y[i];
sigx += x[i];
sigy += y[i];
sigx2 += x[i]*x[i];
}
}
return (n*sigxy - sigx*sigy)/(n*sigx2 - sigx*sigx);
}
ENDVERBATIM
:* v1.stats(num) does a linear regression, assuming num=timestep of vector
VERBATIM
static double stats(void* vv) {
int i, n;
double *x, *y;
double timestep, sigxy, sigx, sigy, sigx2, sigy2;
double r, m, b;
/* how to get the instance data */
n = vector_instance_px(vv, &y);
if(ifarg(1)) {
timestep = *getarg(1);
} else { printf("You must supply a timestep\n"); return 0; }
sigxy= sigx= sigy= sigx2=sigy2= 0; // initialize these
x = (double *) malloc(sizeof(double)*n);
for(i=0; i<n; i++) {
x[i] = timestep*i;
sigxy += x[i] * y[i];
sigx += x[i];
sigy += y[i];
sigx2 += x[i]*x[i];
sigy2 += y[i]*y[i];
}
m = (n*sigxy - sigx*sigy)/(n*sigx2 - sigx*sigx);
b = (sigy*sigx2 - sigx*sigxy)/(n*sigx2 - sigx*sigx);
r = (n*sigxy - sigx*sigy)/(sqrt(n*sigx2-sigx*sigx) * sqrt(n*sigy2-sigy*sigy));
printf("Examined %d data points\n", n);
printf("slope = %f\n", m);
printf("intercept = %f\n", b);
printf("R = %f\n", r);
printf("R-squared = %f\n", r*r);
return 1;
}
ENDVERBATIM
:* v1.vstats(v2) does a linear regression, using v2 as the x-coords
VERBATIM
static double vstats(void* vv) {
int i, n;
double *x, *y;
double timestep, sigxy, sigx, sigy, sigx2, sigy2;
double r, m, b;
/* how to get the instance data */
n = vector_instance_px(vv, &y);
if(ifarg(1)) {
if(vector_arg_px(1, &x) != n ) {
hoc_execerror("Vector size doesn't match.", 0);
}
sigxy= sigx= sigy= sigx2=sigy2=0; // initialize these
for(i=0; i<n; i++) {
sigxy += x[i] * y[i];
sigx += x[i];
sigy += y[i];
sigx2 += x[i]*x[i];
sigy2 += y[i]*y[i];
}
m = (n*sigxy - sigx*sigy)/(n*sigx2 - sigx*sigx);
b = (sigy*sigx2 - sigx*sigxy)/(n*sigx2 - sigx*sigx);
r = (n*sigxy - sigx*sigy)/(sqrt(n*sigx2-sigx*sigx) * sqrt(n*sigy2-sigy*sigy));
printf("Examined %d data points\n", n);
printf("slope = %f\n", m);
printf("intercept = %f\n", b);
printf("R = %f\n", r);
printf("R-squared = %f\n", r*r);
return 1;
} else {
printf("You must supply an x vector!\n");
return 0;
}
}
ENDVERBATIM
:* v1.randwd(num[,v2]) will randomly flip num bits from BVBASE to 1
: does v1.fill(BVBASE); optionally fill v2 with the indices
VERBATIM
static double randwd(void* vv) {
int i, ii, jj, nx, ny, flip, flag;
double* x, *y;
/* how to get the instance data */
nx = vector_instance_px(vv, &x);
flip = (int) *getarg(1);
if (ifarg(2)) { /* write a diff vector to z */
flag = 1; ny = vector_arg_px(2, &y);
if (ny!=flip) { hoc_execerror("Opt vector must be size for # of flips", 0); }
} else { flag = 0; }
if (flip>=nx) { hoc_execerror("# of flips exceeds (or ==) vector size", 0); }
for (i=0; i < nx; i++) { x[i] = BVBASE; }
for (i=0,jj=0; i < flip; i++) { /* flip these bits */
ii = (int) ((nx+1)*drand48());
if (x[ii]==BVBASE) {
x[ii] = 1.;
if (flag) { y[jj] = ii; jj++; }
} else {
i--;
}
}
return flip;
}
ENDVERBATIM
:* v1.hamming(v2[,v3]) compares v1 and v2 for matches, v3 gives diff vector
VERBATIM
static double hamming(void* vv) {
int i, nx, ny, nz, prflag;
double* x, *y, *z,sum;
sum = 0.;
nx = vector_instance_px(vv, &x);
ny = vector_arg_px(1, &y);
if (ifarg(2)) { /* write a diff vector to z */
prflag = 1; nz = vector_arg_px(2, &z);
} else { prflag = 0; }
if (nx!=ny || (prflag && nx!=nz)) {
hoc_execerror("Vectors must be same size", 0);
}
for (i=0; i < nx; ++i) {
if (x[i] != y[i]) { sum++;
if (prflag) { z[i] = 1.; }
} else if (prflag) { z[i] = 0.; }
}
return sum;
}
ENDVERBATIM
:* v1.ident() gives addresses and sizes
VERBATIM
static double ident(void* vv) {
int nx,bsz; double* x;
nx = vector_instance_px(vv, &x);
bsz=vector_buffer_size(vv);
printf("Obj*%x Dbl*%x Size: %d Bufsize: %d\n",vv,x,nx,bsz);
}
ENDVERBATIM
:* v1.indset(ind,x[,y]) sets indexed values to x and other values to optional y
VERBATIM
static double indset(void* vv) {
int i, nx, ny, nz, flag;
double* x, *y, *z, val, val2 ;
nx = vector_instance_px(vv, &x);
ny = vector_arg_px(1, &y);
if (hoc_is_object_arg(2)) {
flag=1;
nz = vector_arg_px(2, &z);
if (ny!=nz) { hoc_execerror("v.indset: Vector sizes don't match.", 0); }
} else { flag=0; val=*getarg(2); }
if (ifarg(3)) {
val2 = *getarg(3);
for (i=0; i<nx; i++) { x[i]=val2; }
}
for (i=0; i<ny; i++) {
if (y[i] > nx) { hoc_execerror("v.indset: Index exceeds vector size", 0); }
if (flag) x[(int)y[i]]=z[i]; else x[(int)y[i]]=val;
}
return i;
}
ENDVERBATIM
VERBATIM
/* Maintain parallel int vector to avoid slowness of repeated casts */
static int scrsz=0;
static int *scr;
static double dcr[100]; // scratch area for doubles
ENDVERBATIM
:* tmp.fewind(ind,veclist)
: picks out numbers from multiple vectors using index ind
VERBATIM
static double fewind (void* vv) {
int i, j, nx, ni, nv[10], num;
Object* ob;
double *x, *ind, *vvo[10];
nx = vector_instance_px(vv, &x);
ni = vector_arg_px(1, &ind);
ob = *hoc_objgetarg(2);
num = ivoc_list_count(ob);
if (num>10) hoc_execerror("ERR: fewind can only handle 10 vectors", 0);
for (i=0;i<num;i++) {
nv[i] = list_vector_px(ob, i, &vvo[i]);
if (nx!=nv[i]) { printf("fewind ERR %d %d %d\n",i,nx,nv[i]);
hoc_execerror("Vectors must all be same size: ", 0); }
}
if (ni>scrsz) {
if (scrsz>0) { free(scr); scr=(int *)NULL; }
scrsz=ni+10000;
scr=(int *)ecalloc(scrsz, sizeof(int));
}
for (i=0;i<ni;i++) { scr[i]=(int)ind[i]; /* copy into integer array */
if (scr[i]>=nx || scr[i]<0) { printf("fewind ERR1 %d %d\n",scr[i],nx);
hoc_execerror("Index vector out-of-bounds", 0); }
}
for (j=0;j<num;j++) {
for (i=0;i<ni;i++) x[i]=vvo[j][scr[i]];
for (i=0;i<ni;i++) vvo[j][i]=x[i];
list_vector_resize(ob, j, ni);
}
return ni;
}
ENDVERBATIM
:* ind.findx(vecAlist,vecBlist)
: uses ind as index into vecA's to load in vecB's (for select); a nondestructive fewind()
VERBATIM
static double findx (void* vv) {
int i, j, ni, nx, av[11], bv[11], num;
Object *ob1, *ob2;
double *ind, *avo[11], *bvo[11];
ni = vector_instance_px(vv, &ind);
ob1 = *hoc_objgetarg(1);
ob2 = *hoc_objgetarg(2);
num = ivoc_list_count(ob1);
i = ivoc_list_count(ob2);
if (i!=num) hoc_execerror("findx ****ERRA****: lists have different counts", 0);
if (num>11) hoc_execerror("findx ****ERRB****: can only handle 11 vectors", 0);
for (i=0;i<num;i++) {
av[i]=list_vector_px(ob1, i, &avo[i]); // source vectors
if (av[0]!=av[i]) { printf("findx ****ERRC**** %d %d %d\n",i,av[0],av[i]);
hoc_execerror("Src vectors must all be same size: ", 0); }
}
nx=av[0]; // size of source vecs
for (i=0;i<num;i++) {
bv[i]=list_vector_px2(ob2, i, &bvo[i], &vv); /* dest vectors */
if (vector_buffer_size(vv)<ni) {
printf("findx ****ERRD**** arg#%d need:%d sz:%d\n",num+i+1,ni,vector_buffer_size(vv));
hoc_execerror("Destination vector with insufficient size: ", 0);
} else {
vector_resize(vv, ni);
}
}
if (ni>scrsz) {
if (scrsz>0) { free(scr); scr=(int *)NULL; }
scrsz=ni+10000;
scr=(int *)ecalloc(scrsz, sizeof(int));
}
for (i=0;i<ni;i++) { scr[i]=(int)ind[i]; // copy into integer array
if (scr[i]>=nx || scr[i]<0) { printf("findx ****ERRE**** **** IND:%d SZ:%d\n",scr[i],nx);
hoc_execerror("Index vector out-of-bounds", 0); }
}
for (j=0,i=0;j<num;j++) for (i=0;i<ni;i++) bvo[j][i]=avo[j][scr[i]];
return ni;
}
ENDVERBATIM
:* ind.sindx(vecAlist,vecBlist)
: uses ind as index into vecA's to replace with elements from vecB's
VERBATIM
static double sindx (void* vv) {
int i, j, ni, nx, av[11], bv[11], num;
Object *ob1, *ob2;
double *ind, *avo[11], *bvo[11];
ni = vector_instance_px(vv, &ind);
ob1 = *hoc_objgetarg(1);
ob2 = *hoc_objgetarg(2);
num = ivoc_list_count(ob1);
i = ivoc_list_count(ob2);
if (num!=i) hoc_execerror("sindx ****ERRA****: two vec lists have different counts", 0);
if (num>11) hoc_execerror("sindx ****ERRB****: can only handle 11 vectors", 0);
for (i=0;i<num;i++) {
av[i]=list_vector_px(ob1, i, &avo[i]); // dest vectors
if (av[0]!=av[i]) { printf("sindx ****ERRC**** %d %d %d\n",i,av[0],av[i]);
hoc_execerror("Dest. vectors must all be same size: ", 0); }
}
nx=av[0]; // size of dest vecs
for (i=0;i<num;i++) {
bv[i]=list_vector_px(ob2, i, &bvo[i]); /* source vectors */
if (bv[i]!=ni) {
printf("sindx ****ERRD**** arg#%d does note match ind length %d vs %d\n",num+i+1,ni,bv[i]);
hoc_execerror("Source vector with insufficient size: ", 0); }
}
if (ni>scrsz) {
if (scrsz>0) { free(scr); scr=(int *)NULL; }
scrsz=ni+10000;
scr=(int *)ecalloc(scrsz, sizeof(int));
}
for (i=0;i<ni;i++) { scr[i]=(int)ind[i]; // copy into integer array
if (scr[i]>=nx || scr[i]<0) {
printf("sindx ****ERRE**** IND:%d SZ:%d\n",scr[i],nx);
hoc_execerror("Index vector out-of-bounds", 0); }
}
for (j=0,i=0;j<num;j++) for (i=0;i<ni;i++) avo[j][scr[i]]=bvo[j][i];
return ni;
}
ENDVERBATIM
:* ind.sindv(vecAlist,valvec)
: uses ind as index into vecA's to replace with values in valvec
VERBATIM
static double sindv(void* vv) {
int i, j, ni, nx, av[11], bv, num;
Object* ob;
double *ind, *avo[11], *bvo;
ni = vector_instance_px(vv, &ind);
ob = *hoc_objgetarg(1);
bv=vector_arg_px(2, &bvo); // source vector
num = ivoc_list_count(ob);
if (num>11) hoc_execerror("sindv ****ERRA****: can only handle 11 vectors", 0);
for (i=0;i<num;i++) {
av[i]=list_vector_px(ob, i, &avo[i]); // dest vectors
if (av[0]!=av[i]) { printf("sindv ****ERRC**** %d %d %d\n",i,av[0],av[i]);
hoc_execerror("Dest. vectors must all be same size: ", 0); }
}
nx=av[0]; // size of source vecs
if (bv!=num) {
printf("sindv ****ERRD**** Vector arg does note match list count %d vs %d\n",num,bv);
hoc_execerror("Source vector is wrong size: ", 0); }
if (ni>scrsz) {
if (scrsz>0) { free(scr); scr=(int *)NULL; }
scrsz=ni+10000;
scr=(int *)ecalloc(scrsz, sizeof(int));
}
for (i=0;i<ni;i++) { scr[i]=(int)ind[i]; // copy into integer array
if (scr[i]>=nx || scr[i]<0) {
printf("sindv ****ERRE**** IND:%d SZ:%d\n",scr[i],nx);
hoc_execerror("Index vector out-of-bounds", 0); }
}
for (j=0,i=0;j<num;j++) for (i=0;i<ni;i++) avo[j][scr[i]]=bvo[j];
return ni;
}
ENDVERBATIM
:* ind.slct(key,args,veclist)
: picks out indices of numbers in key from multiple vectors
VERBATIM
static double slct(void* vv) {
int i, j, k, m, n, p, ni, nk, na, nv[10], num, fl, lc;
Object* lob;
double *ind, *key, *arg, *vvo[10];
ni = vector_instance_px(vv, &ind); // vv is ind
nk = vector_arg_px(1, &key);
na = vector_arg_px(2, &arg);
lob = *hoc_objgetarg(3);
num = ivoc_list_count(lob);
if (num>10) hoc_execerror("ERR: vecst::slct can only handle 10 vectors", 0);
for (i=0,j=0,k=0;i<num;i++,j++) {
nv[i] = list_vector_px(lob, i, &vvo[i]);
if (ni!=nv[i] && (key[j]!=EQW || k!=1)) {
printf("vecst::slct ERR %d %d %d %d %d\n",i,j,k,ni,nv[i]);
hoc_execerror("index and searched vectors must all be same size: ", 0);
}
if (key[j]==EQW || key[j]==EQV) if (k==0){j--;k++;} else k=0; // EQW,EQV take 2 vector args
}
if (2*nk!=na) { printf("vecst::slct ERR3 %d %d\n",nk,na);
hoc_execerror("Arg vector must be double key length",0); }
for (i=0,n=0;i<nk;i++) if (key[i]==EQV || key[i]==EQW) n++; // special cases take 2 vec args
if (nk+n!=num) {
printf("vecst::slct ERR2 %d(keys)+%d(EQV/W)!=%d(vecs)\n",nk,n,num);
hoc_execerror("Key length must be number of vecs + num of EQV/W",0); }
for (j=0,k=0,m=0;j<ni;j++) { // j steps through elements of vectors
for (i=0,m=0,n=0,fl=1;i<num;i++,n++,m+=2) { // i steps thru key, m thru args
if (key[n]==ALL) continue; // OK - do nothing
if (key[n]==NOZ) { if (vvo[i][j]==0.) {fl=0; break;} else continue;
} else if (key[n]==POS) { if (vvo[i][j]<=0.) {fl=0; break;} else continue;
} else if (key[n]==NEG) { if (vvo[i][j]>=0.) {fl=0; break;} else continue;
} else if (key[n]==GTH) { if (vvo[i][j]<=arg[m]) {fl=0; break;} else continue;
} else if (key[n]==GTE) { if (vvo[i][j]< arg[m]) {fl=0; break;} else continue;
} else if (key[n]==LTH) { if (vvo[i][j]>=arg[m]) {fl=0; break;} else continue;
} else if (key[n]==LTE) { if (vvo[i][j]> arg[m]) {fl=0; break;} else continue;
} else if (key[n]==EQU) { if (vvo[i][j]!=arg[m]) {fl=0; break;} else continue;
} else if (key[n]==EQV) { if (vvo[i][j]!=vvo[i+1][j]) {
fl=0; break;} else { i++; continue; }
} else if (key[n]==EQW) { // check value against values in following vec
fl=0; // assume it's not going to match
for (p=0;p<nv[i+1];p++) if (vvo[i][j]==vvo[i+1][p]) {fl=1; break;}
if (fl==0) break; else { i++; continue; }
} else if (key[n]==NEQ) { if (vvo[i][j]==arg[m]) {fl=0; break;} else continue;
} else if (key[n]==IBE) { if ((vvo[i][j]< arg[m])||(vvo[i][j]>=arg[m+1])) {
fl=0; break; } else continue; // IBE="[)" include-bracket-exclude
} else if (key[n]==EBI) { if ((vvo[i][j]<=arg[m])||(vvo[i][j]> arg[m+1])) {
fl=0; break; } else continue; // "(]" : exclude-bracket-include
} else if (key[n]==IBI) { if ((vvo[i][j]< arg[m])||(vvo[i][j]> arg[m+1])) {
fl=0; break; } else continue; // "[]" : include-bracket-include
} else if (key[n]==EBE) { if ((vvo[i][j]<=arg[m])||(vvo[i][j]>=arg[m+1])) {
fl=0; break; } else continue; // "()" : exclude-bracket-exclude
} else {printf("vecst::slct ERR4 %g\n",key[n]); hoc_execerror("Unknown key",0);}
}
if (fl) ind[k++]=j; // all equal
}
vector_resize(vv, k);
return k;
}
ENDVERBATIM
:* ind.slor(key,args,vec1,vec2[,vec3,vec4,...])
: picks out indices of numbers in key from multiple vectors
VERBATIM
static double slor(void* vv) {
int i, j, k, m, n, p, ni, nk, na, nv[10], num, fl;
Object* lob;
double *ind, *key, *arg, *vvo[10];
ni = vector_instance_px(vv, &ind); // vv is ind
nk = vector_arg_px(1, &key);
na = vector_arg_px(2, &arg);
lob = *hoc_objgetarg(3);
num = ivoc_list_count(lob);
if (num>10) hoc_execerror("ERR: vecst::slor can only handle 10 vectors", 0);
for (i=0,j=0,k=0;i<num;i++,j++) {
nv[i] = list_vector_px(lob, i, &vvo[i]);
if (ni!=nv[i] && (key[j]!=EQW || k!=1)) {
printf("vecst::slct ERR %d %d %d %d %d\n",i,j,k,ni,nv[i]);
hoc_execerror("index and searched vectors must all be same size: ", 0);
}
if (key[j]==EQW || key[j]==EQV) if (k==0){j--;k++;} else k=0; // k counts 2 vecs
}
if (2*nk!=na) { printf("vecst::slor ERR3 %d %d\n",nk,na);
hoc_execerror("Arg vector must be double key length",0); }
for (i=0,n=0;i<nk;i++) if (key[i]==EQV || key[i]==EQW) n++; // special case takes 2 vec args
if (nk+n!=num) {
printf("vecst::slor ERR2 %d(keys)+%d(EQV)!=%d(vecs)\n",nk,n,num);
hoc_execerror("Key length must be number of vecs + num of EQV",0); }
for (j=0,k=0,m=0;j<ni;j++) { // j steps through elements of vectors
for (i=0,m=0,n=0,fl=0;i<num;i++,n++,m+=2) { // i steps thru key, m thru args
if (key[n]==ALL) {fl=1; break;} // OK - do nothing
if (key[n]==NOZ) { if (vvo[i][j]==0.) continue; else {fl=1; break;}
} else if (key[n]==POS) { if (vvo[i][j]<=0.) continue; else {fl=1; break;}
} else if (key[n]==NEG) { if (vvo[i][j]>=0.) continue; else {fl=1; break;}
} else if (key[n]==GTH) { if (vvo[i][j]<=arg[m]) continue; else {fl=1; break;}
} else if (key[n]==GTE) { if (vvo[i][j]< arg[m]) continue; else {fl=1; break;}
} else if (key[n]==LTH) { if (vvo[i][j]>=arg[m]) continue; else {fl=1; break;}
} else if (key[n]==LTE) { if (vvo[i][j]> arg[m]) continue; else {fl=1; break;}
} else if (key[n]==EQU) { if (vvo[i][j]!=arg[m]) continue; else {fl=1; break;}
} else if (key[n]==EQV) { if (vvo[i][j]!=vvo[i+1][j]) continue; else {
i++; fl=1; break; }
} else if (key[n]==EQW) { // check value against values in following vec
fl=0; // assume it's not going to match
for (p=0;p<nv[i+1];p++) if (vvo[i][j]==vvo[i+1][p]) {fl=1; break;}
if (fl==1) break; else { i++; continue; }
} else if (key[n]==NEQ) { if (vvo[i][j]==arg[m]) continue; else {fl=1; break;}
} else if (key[n]==IBE) { if ((vvo[i][j]< arg[m])||(vvo[i][j]>=arg[m+1])) {
continue; } else {fl=1; break;} // IBE="[)" include-bracket-exclude
} else if (key[n]==EBI) { if ((vvo[i][j]<=arg[m])||(vvo[i][j]> arg[m+1])) {
continue; } else {fl=1; break;} // "(]" : exclude-bracket-include
} else if (key[n]==IBI) { if ((vvo[i][j]< arg[m])||(vvo[i][j]> arg[m+1])) {
continue; } else {fl=1; break;} // "[]" : include-bracket-include
} else if (key[n]==EBE) { if ((vvo[i][j]<=arg[m])||(vvo[i][j]>=arg[m+1])) {
continue; } else {fl=1; break;} // "()" : exclude-bracket-exclude
} else {printf("vecst::slor ERR4 %g\n",key[n]); hoc_execerror("Unknown key",0);}
}
if (fl) ind[k++]=j; // all equal
}
vector_resize(vv, k);
return k;
}
ENDVERBATIM
:* v.iwr()
VERBATIM
static double iwr(void* vv) {
int i, j, nx;
double *x;
FILE* f, *hoc_obj_file_arg();
f = hoc_obj_file_arg(1);
nx = vector_instance_px(vv, &x);
if (nx>scrsz) {
if (scrsz>0) { free(scr); scr=(int *)NULL; }
scrsz=nx+10000;
scr=(int *)ecalloc(scrsz, sizeof(int));
}
for (i=0;i<nx;i++) scr[i]=(int)x[i]; /* copy into integer array */
fwrite(&nx,sizeof(int),1,f); // write out the size
fwrite(scr,sizeof(int),nx,f);
return nx;
}
ENDVERBATIM
:* v.ird()
VERBATIM
static double ird(void* vv) {
int i, j, nx, n;
double *x;
FILE* f, *hoc_obj_file_arg();
f = hoc_obj_file_arg(1);
nx = vector_instance_px(vv, &x);
fread(&n,sizeof(int),1,f); // size
if (n>scrsz) {
if (scrsz>0) { free(scr); scr=(int *)NULL; }
scrsz=n+10000;
scr=(int *)ecalloc(scrsz, sizeof(int));
}
if (n!=nx) {
nx=vector_buffer_size(vv);
if (n<=nx) {
vector_resize(vv, n); nx=n;
} else {
printf("%d > %d :: ",n,nx);
hoc_execerror("Vector max capacity too small for ird ", 0);
}
}
fread(scr,sizeof(int),n,f);
for (i=0;i<nx;i++) x[i]=(double)scr[i];
return n;
}
ENDVERBATIM
:* v.fread2()
VERBATIM
static double fread2(void* vv) {
int i, j, nx, n, type;
double *x;
FILE* fp, *hoc_obj_file_arg();
fp = hoc_obj_file_arg(1);
nx = vector_instance_px(vv, &x);
n = (int)*getarg(2);
type = (int)*getarg(3);
if (type==6) { // unsigned ints
unsigned int *xs;
if (n>scrsz) {
if (scrsz>0) { free(scr); scr=(int *)NULL; }
scrsz=n+10000;
scr=(int *)ecalloc(scrsz, sizeof(int));
}
xs=(unsigned int*)scr;
nx=vector_buffer_size(vv);
if (n<=nx) {
vector_resize(vv, n); nx=n;
} else {
printf("%d > %d :: ",n,nx);
hoc_execerror("Vector max capacity too small for fread2 ", 0);
}
fread(xs,sizeof(int),n,fp);
for (i=0;i<nx;i++) x[i]=(double)scr[i];
return n;
} else hoc_execerror("Type unsupported in fread2 ", 0);
}
ENDVERBATIM
:* ind.insct(v1,v2)
: return v1 intersect v2
VERBATIM
static double insct(void* vv) {
int i, j, k, nx, nv1, nv2, maxsz;
double *x, *v1, *v2;
nx = vector_instance_px(vv, &x);
maxsz=vector_buffer_size(vv);
vector_resize(vv, maxsz);
nv1 = vector_arg_px(1, &v1);
nv2 = vector_arg_px(2, &v2);
for (i=0,k=0;i<nv1;i++) for (j=0;j<nv2;j++) if (v1[i]==v2[j]) {
if (k<maxsz) { x[k++]=v1[i]; } else {k++;}} /* v1[i] found in both vectors */
if (k>maxsz) {
printf("\tinsct WARNING: ran out of room: %d<%d\n",maxsz,k);
} else { vector_resize(vv, k); }
return (double)k;
}
ENDVERBATIM
:* vec.cull(src,key)
: remove numbers in vec that are found in the key
VERBATIM
static double cull(void* vv) {
int i, j, k, nx, nv1, nv2, maxsz, flag;
double *x, *v1, *v2;
nx = vector_instance_px(vv, &x);
maxsz=vector_buffer_size(vv);
vector_resize(vv, maxsz);
nv1 = vector_arg_px(1, &v1);
nv2 = vector_arg_px(2, &v2);
for (i=0,k=0;i<nv1;i++) {
flag=1;
for (j=0;j<nv2;j++) if (v1[i]==v2[j]) flag=0;
if (flag) {if (k<maxsz) { x[k++]=v1[i]; } else { k++; }}
}
if (k>maxsz) {
printf("\tcull WARNING: ran out of room: %d<%d\n",maxsz,k);
} else { vector_resize(vv, k); }
return (double)k;
}
ENDVERBATIM
:* dest.redundout(src[,INDFLAG])
: flag redundant numbers; must sort src first
VERBATIM
static double redundout(void* vv) {
int i, j, nx, nv1, maxsz, indflag;
double *x, *v1, val;
if (ifarg(2)) indflag=1; else indflag=0;
nx = vector_instance_px(vv, &x);
maxsz=vector_buffer_size(vv);
vector_resize(vv, maxsz);
nv1 = vector_arg_px(1, &v1);
val=v1[0]; x[0]=(indflag?0:val);
for (j=1,i=1;i<nv1&&j<maxsz;i++) if (v1[i]!=val) { val=v1[i]; x[j++]=(indflag?i:val); }
if (j==maxsz) {
printf("\tredundout WARNING: ran out of room: %d<needed\n",maxsz);
} else { vector_resize(vv, j); }
return (double)j;
}
ENDVERBATIM
:* vdest.cvlv(vsrc,vfilt)
: convolution
VERBATIM
static double cvlv(void* vv) {
int i, j, k, nx, nsrc, nfilt;
double *x, *src, *filt, sum, lpad, rpad;
nx = vector_instance_px(vv, &x);
nsrc = vector_arg_px(1, &src);
nfilt = vector_arg_px(2, &filt);
if (nx!=nsrc) { hoc_execerror("Vectors not same size: ", 0); }
if (nfilt>nsrc) { hoc_execerror("Filter bigger than source ", 0); }
for (i=0;i<nx;i++) {
x[i]=0.0;
for (j=0,k=i-(int)(nfilt/2);j<nfilt;j++,k++) {
if (k>0 && k<nsrc-1) x[i]+=filt[j]*src[k];
}
}
}
ENDVERBATIM
:* vdest.intrp(flag)
: interpolate numbers replacing numbers given as flag
VERBATIM
static double intrp(void* vv) {
int i, la, lb, nx;
double *x, fl, a, b;
nx = vector_instance_px(vv, &x);
fl = *getarg(1);
i=0; a=x[0]; la=0;
if (a==fl) a=0;
while (i<nx-1) {
for (i=la+1;x[i]==fl && i<nx-1; i++) ; /* find the next one */
b=x[i]; lb=i;
for (i=la+1; i<lb; i++) x[i]= a + (b-a)/(lb-la)*(i-la);
a=b; la=lb;
}
}
ENDVERBATIM
:* tmp.nind(ind,vec1,vec2[,vec3,vec4,...])
: picks out numbers not in ind from multiple vectors
: ind must be sorted
VERBATIM
static double nind(void* vv) {
int i, j, k, m, nx, ni, nv[10], num, c, last;
double *x, *ind, *vvo[10];
nx = vector_instance_px(vv, &x);
for (i=0;ifarg(i);i++);
if (i>9) hoc_execerror("ERR: nind can only handle 9 vectors", 0);
num = i-2; /* number of vectors to be picked apart */
for (i=0;i<num;i++) {
nv[i] = vector_arg_px(i+2, &vvo[i]);
if (nx!=nv[i]) { printf("nind ERR %d %d %d\n",i,nx,nv[i]);
hoc_execerror("Vectors must all be same size: ", 0); }
}
ni = vector_arg_px(1, &ind);
c = nx-ni; /* the elems indexed are to be eliminated */
if (ni>scrsz) {
if (scrsz>0) { free(scr); scr=(int *)NULL; }
scrsz=ni+10000;
scr=(int *)ecalloc(scrsz, sizeof(int));
}
for (i=0,last=-1;i<ni;i++) {
scr[i]=(int)ind[i]; /* copy into integer array */
if (scr[i]<0 || scr[i]>=nx) hoc_execerror("nind(): Index out of bounds", 0);
if (scr[i]<=last) hoc_execerror("nind(): indices should mono increase", 0);
last=scr[i];
}
for (j=0;j<num;j++) { /* each output vec */
for (i=0,last=-1,m=0;i<ni;i++) { /* the indices of ind */
for (k=last+1;k<scr[i];k++) { x[m++]=vvo[j][k]; }
last=scr[i];
}
for (k=last+1;k<nx;k++,m++) { x[m]=vvo[j][k]; }
for (i=0;i<c;i++) vvo[j][i]=x[i];
vv=vector_arg(j+2); vector_resize(vv, c);
}
return c;
}
ENDVERBATIM
:* ind.keyind(key,vec1,vec2[,vec3,vec4,...])
: picks out indices of numbers in key from multiple vectors
VERBATIM
static double keyind(void* vv) {
int i, j, k, ni, nk, nv[10], num;
double *ind, *key, *vvo[10];
ni = vector_instance_px(vv, &ind); // vv is ind
for (i=0;ifarg(i);i++); i--; // drop back by one to get numarg()
if (i>10) hoc_execerror("ERR: keyind can only handle 9 vectors", 0);
num = i-1; /* number of vectors to be picked apart */
for (i=0;i<num;i++) {
nv[i] = vector_arg_px(i+2, &vvo[i]);
if (ni!=nv[i]) { printf("keyind ERR %d %d %d\n",i,ni,nv[i]);
hoc_execerror("Non-key vectors must be same size: ", 0); }
}
nk = vector_arg_px(1, &key);
if (nk!=num) { printf("keyind ERR2 %d %d\n",nk,num);
hoc_execerror("Key length must be number of vecs",0); }
k=0;
for (j=0;j<ni;j++) { // j steps through elements of vectors
for (i=0;i<nk;i++) { // i steps through the key
if (key[i]==ALL) continue; // OK - do nothing
if (key[i]==NOZ) { if (vvo[i][j]==0.) break; else continue;
} else if (key[i]==POS) { if (vvo[i][j]<=0.) break; else continue;
} else if (key[i]==NEG) { if (vvo[i][j]>=0.) break; else continue;
} else if (key[i]!=vvo[i][j]) break; // default
}
if (i==nk) ind[k++]=j; // all equal
}
vector_resize(vv, k);
return k;
}
ENDVERBATIM
:* v1.flipbits(scratch,num) flips num bits
: uses scratch vector of same size as v1 to make sure doesn't flip same bit twice
VERBATIM
static double flipbits(void* vv) {
int i, nx, ny, flip, ii;
double* x, *y;
nx = vector_instance_px(vv, &x);
ny = vector_arg_px(1, &y);
flip = (int)*getarg(2);
if (nx != ny) {
hoc_execerror("Scratch vector must be same size", 0);
}
for (i=0; i<nx; i++) { y[i]=x[i]; } /* copy */
for (i=0; i < flip; i++) { /* flip these bits */
ii = (int) ((nx+1)*drand48());
if (x[ii]==y[ii]) { /* hasn't been touched */
x[ii]=((x[ii]==1.)?BVBASE:1.);
} else {
i--; /* do it again */
}
}
return flip;
}
ENDVERBATIM
:* v1.flipbalbits(scratch,num) flips num bits making sure to balance every 1
: flip with a 0 flip to preserve initial power
: uses scratch vector of same size as v1 to make sure doesn't flip same bit twice
VERBATIM
static double flipbalbits(void* vv) {
int i, nx, ny, flip, ii, next;
double* x, *y;
nx = vector_instance_px(vv, &x);
ny = vector_arg_px(1, &y);
flip = (int)*getarg(2);
if (nx != ny) {
hoc_execerror("Scratch vector must be same size", 0);
}
for (i=0; i<nx; i++) { y[i]=x[i]; } /* copy */
next = 1; /* start with 1 */
for (i=0; i < flip;) { /* flip these bits */
ii = (int) ((nx+1)*drand48());
if (x[ii]==y[ii] && y[ii]==next) { /* hasn't been touched */
next=x[ii]=((x[ii]==1.)?BVBASE:1.);
i++;
}
}
return flip;
}
ENDVERBATIM
:* v1.vpr() prints out neatly
VERBATIM
static double vpr(void* vv) {
int i, nx;
double* x;
FILE* f;
nx = vector_instance_px(vv, &x);
if (ifarg(1)) {
f = hoc_obj_file_arg(1);
for (i=0; i<nx; i++) {
if (x[i]>BVBASE) { fprintf(f,"%d",1);
} else { fprintf(f,"%d",0); }
}
fprintf(f,"\n");
} else {
for (i=0; i<nx; i++) {
if (x[i]>BVBASE) { printf("%d",1);
} else { printf("%d",0); }
}
printf("\n");
}
return 1.;
}
ENDVERBATIM
:* v1.thresh() threshold above and below thresh
VERBATIM
static double thresh(void* vv) {
int i, nx, ny, cnt;
double *x, *y, th;
nx = vector_instance_px(vv, &x);
cnt=0;
if (hoc_is_object_arg(1)) {
ny = vector_arg_px(1, &y); th=0;
if (nx!=ny) { hoc_execerror("Vector sizes don't match in thresh.", 0); }
for (i=0; i<nx; i++) { if (x[i]>=y[i]) { x[i]= 1.; cnt++;} else { x[i]= BVBASE; } }
} else { th = *getarg(1);
for (i=0; i<nx; i++) { if (x[i] >= th) { x[i]= 1.; cnt++;} else { x[i]= BVBASE; } }
}
return cnt;
}
ENDVERBATIM
:* v1.triplet() return location of a triplet
VERBATIM
static double triplet(void* vv) {
int i, nx;
double *x, *y, a, b;
nx = vector_instance_px(vv, &x);
a = *getarg(1); b = *getarg(2);
for (i=0; i<nx; i+=3) if (x[i]==a&&x[i+1]==b) break;
if (i<nx) return (double)i; else return -1.;
}
ENDVERBATIM
:* state.onoff(volts,OBon,thresh,dur,refr)
: looks at volts vector to decide if have rearch threshold thresh
: OBon takes account of burst dur and refractory period
VERBATIM
static double onoff(void* vv) {
int i, j, n, nv, non, nt, nd, nr, num;
double *st, *vol, *obon, *thr, *dur, *refr;
n = vector_instance_px(vv, &st);
nv = vector_arg_px(1, &vol);
non = vector_arg_px(2, &obon);
nt = vector_arg_px(3, &thr);
nd = vector_arg_px(4, &dur);
nr = vector_arg_px(5, &refr);
if (n!=nv||n!=non||n!=nt||n!=nd||n!=nr) {
hoc_execerror("v.onoff: vectors not all same size", 0); }
for (i=0,num=0;i<n;i++) {
obon[i]--;
if (obon[i]>0.) { st[i]=1.; continue; } /* cell must fire */
if (vol[i]>=thr[i] && obon[i]<= -refr[i]) { /* past refractory period */
st[i]=1.; obon[i]=dur[i]; num++;
} else { st[i]= BVBASE; }
}
return num;
}
ENDVERBATIM
:* vo.bpeval(outp,del)
: service routine for back-prop: vo=outp*(1-outp)*del
VERBATIM
static double bpeval(void* vv) {
int i, n, no, nd, flag=0;
double add,div;
double *vo, *outp, *del;
n = vector_instance_px(vv, &vo);
no = vector_arg_px(1, &outp);
nd = vector_arg_px(2, &del);
if (ifarg(3) && ifarg(4)) { add= *getarg(3); div= *getarg(4); flag=1;}
if (n!=no||n!=nd) hoc_execerror("v.bpeval: vectors not all same size", 0);
if (flag) {
for (i=0;i<n;i++) vo[i]=((outp[i]+add)/div)*(1.-1.*((outp[i]+add)/div))*del[i];
} else {
for (i=0;i<n;i++) vo[i]=outp[i]*(1.-1.*outp[i])*del[i];
}
}
ENDVERBATIM
:* v1.sedit() string edit
VERBATIM
static double sedit(void* vv) {
int i, n, ni, f=0;
double *x, *ind, th, val;
Symbol* s; char *op;
op = gargstr(1);
n = vector_instance_px(vv, &x);
sprintf(op,"hello world");
return (double)n;
}
ENDVERBATIM
:* v1.w() a .where that sets elements in source vector
VERBATIM
static double w(void* vv) {
int i, n, ni, f=0;
double *x, *ind, th, val;
Symbol* s; char *op;
if (! ifarg(1)) {
printf("v1.w('op',thresh[,val,v2])\n");
printf(" a .where that sets elements in v1 to val (default 0), if v2 => only look at these elements\n");
printf(" 'op'=='function name' is a .apply targeted by v2 called as func(x[i],thresh,val)\n");
return -1.;
}
op = gargstr(1);
n = vector_instance_px(vv, &x);
th = *getarg(2);
if (ifarg(3)) { val = *getarg(3); } else { val = 0.0; }
if (ifarg(4)) {ni = vector_arg_px(4, &ind); f=1;} // just look at the spots indexed
if (!strcmp(op,"==")) {
if (f==1) {for (i=0; i<ni;i++) {if (x[(int)ind[i]]==th) { x[(int)ind[i]] = val;}}
} else {for (i=0; i<n; i++) {if (x[i]==th) { x[i] = val;}}}
} else if (!strcmp(op,"!=")) {
if (f==1) {for (i=0; i<ni;i++) {if (x[(int)ind[i]]!=th) { x[(int)ind[i]] = val;}}
} else {for (i=0; i<n; i++) {if (x[i]!=th) { x[i] = val;}}}
} else if (!strcmp(op,">")) {
if (f==1) {for (i=0; i<ni;i++) {if (x[(int)ind[i]]>th) { x[(int)ind[i]] = val;}}
} else {for (i=0; i<n; i++) {if (x[i]>th) { x[i] = val;}}}
} else if (!strcmp(op,"<")) {
if (f==1) {for (i=0; i<ni;i++) {if (x[(int)ind[i]]<th) { x[(int)ind[i]] = val;}}
} else {for (i=0; i<n; i++) {if (x[i]<th) { x[i] = val;}}}
} else if (!strcmp(op,">=")) {
if (f==1) {for (i=0; i<ni;i++) {if (x[(int)ind[i]]>=th) { x[(int)ind[i]] = val;}}
} else {for (i=0; i<n; i++) {if (x[i]>=th) { x[i] = val;}}}
} else if (!strcmp(op,"<=")) {
if (f==1) {for (i=0; i<ni;i++) {if (x[(int)ind[i]]<=th) { x[(int)ind[i]] = val;}}
} else {for (i=0; i<n; i++) {if (x[i]<=th) { x[i] = val;}}}
} else if ((s=hoc_lookup(op))) { // same as .apply but only does indexed ones
if (f==1) {for (i=0; i<ni;i++) {
hoc_pushx(x[(int)ind[i]]); hoc_pushx(th); hoc_pushx(val);
x[(int)ind[i]]=hoc_call_func(s, 3);}
} else {for (i=0; i<n;i++) {hoc_pushx(x[i]); hoc_pushx(th); hoc_pushx(val);
x[i]=hoc_call_func(s, 3);}}
}
return (double)i;
}
ENDVERBATIM
:* dest.xing(src,tvec,thresh)
: dest.xing(src,thresh) -- returns indices, change into time by .mul(tstep)
: dest.xing(src) -- default thresh=0; returns indices
: a .where that looks for threshold crossings and then doesn't pick another till
: comes back down again; places values from tvec in dest; interpolates
VERBATIM
static double xing(void* vv) {
int i, j, nsrc, ndest, ntvec, f, maxsz, tvf;
double *src, *dest, *tvec, th;
tvf=0;
ndest = vector_instance_px(vv, &dest);
nsrc = vector_arg_px(1, &src);
if (ifarg(3)) {
ntvec = vector_arg_px(2, &tvec);
th = *getarg(3);
tvf=1; // flag that tvec being used
} else if (ifarg(2)) {
th = *getarg(2);
} else th=0.0; // default threshold
maxsz=vector_buffer_size(vv);
vector_resize(vv, maxsz);
if (tvf && nsrc!=ntvec) hoc_execerror("v.xing: vectors not all same size", 0);
for (i=0,f=0,j=0; i<nsrc; i++) {
if (src[i]>th) { /* ? passing thresh */
if (f==0) {
if (j>=maxsz) {
printf("(%d) :: ",maxsz);
hoc_execerror("Dest vec too small in xing ", 0);
}
if (i>0) { /* don't record if first value is above thresh */
if (tvf) {
dest[j++] = tvec[i-1] + (tvec[i]-tvec[i-1])*(th-src[i-1])/(src[i]-src[i-1]);
} else {
dest[j++] = (i-1) + (th-src[i-1])/(src[i]-src[i-1]);
}
}
f=1;
}
} else { /* below thresh */
if (f==1) { f=0; } /* just passed going down */
}
}
vector_resize(vv, j);
return (double)i;
}
ENDVERBATIM
:* dest.snap(src,tvec,dt)
: interpolate src with tvec to prior dt step, saves only highest value in each interval
: an .interpolate that doesn't loose spikes
VERBATIM
static double snap(void* vv) {
int i, j, nsrc, ndest, ntvec, f, maxsz, size;
double *src, *dest, *tvec, dtt, tstop, tt, val;
ndest = vector_instance_px(vv, &dest);
nsrc = vector_arg_px(1, &src);
ntvec = vector_arg_px(2, &tvec);
dtt = *getarg(3);
maxsz=vector_buffer_size(vv);
tstop = tvec[nsrc-1];
size=(int)tstop/dtt;
if (size>maxsz) {
printf("%g > %g\n",size,maxsz);
hoc_execerror("v.snap: insufficient room in dest", 0); }
vector_resize(vv, size);
if (nsrc!=ntvec) hoc_execerror("v.snap: src and tvec not same size", 0);
for (tt=0,i=0;i<size && tt<=tvec[0];i++,tt+=dtt) dest[i]=src[0];
for (j=1, i--, tt-=dtt; i<size; i++, val=-1e9, tt+=dtt) {
if (tvec[j]>tt) dest[i]=src[j-1]; else {
for (;j<nsrc && tvec[j]<=tt;j++) if (src[j]>val) val=src[j];
if (val==-1e9) printf("vecst:snap() internal ERROR\n");
dest[i]=val;
}
}
return (double)size;
}
ENDVERBATIM
:* v1.xzero() looks for zero crossings
VERBATIM
static double xzero(void* vv) {
int i, n, nv, up;
double *x, *vc, th, cnt=0.;
n = vector_instance_px(vv, &x);
nv = vector_arg_px(1, &vc);
if (ifarg(2)) { th = *getarg(2); } else { th=0.0;}
if (vc[0]<th) up=0; else up=1; /* F or T */
if (nv!=n) hoc_execerror("Vector size doesn't match.", 0);
for (i=0; i<nv; i++) {
x[i]=0.;
if (up) { /* look for passing down */
if (vc[i]<th) { x[i]=-1; up=0; cnt++; }
} else if (vc[i]>th) { up=x[i]=1; cnt++; }
}
return cnt;
}
ENDVERBATIM
:* v1.sw(FROM,TO) switchs all FROMs to TO
VERBATIM
static double sw(void* vv) {
int i, n;
double *x, fr, to;
n = vector_instance_px(vv, &x);
fr = *getarg(1);
to = *getarg(2);
for (i=0; i<n; i++) {
if (x[i]==fr) { x[i] = to;}
}
return n;
}
ENDVERBATIM
:* v.b2v(bytevec) copies from vector to bytevec
VERBATIM
static double b2v(void* vv) {
int i, n, num;
double *x; bvec* to; Object *ob;
n = vector_instance_px(vv, &x);
ob = *(hoc_objgetarg(1));
to = (bvec*)ob->u.this_pointer; // doesn't check that this is actually a bvec
if (to->size!=n) { hoc_execerror("Vector and bytevec sizes don't match.", 0); }
for (i=0; i<n; i++) x[i] = (double)to->x[i];
return n;
}
ENDVERBATIM
:* v.v2d(&x) copies from vector to double area -- a seg error waiting to happen
VERBATIM
static double v2d(void* vv) {
int i, n, num;
double *x, *to;
n = vector_instance_px(vv, &x);
to = hoc_pgetarg(1);
if (ifarg(2)) { num = *getarg(2); } else { num=-1;}
if (num>-1 && num!=n) { hoc_execerror("Vector size doesn't match.", 0); }
for (i=0; i<n; i++) {to[i] = x[i];}
return n;
}
ENDVERBATIM
:* v.d2v(&x) copies from double area to vector -- a seg error waiting to happen
VERBATIM
static double d2v(void* vv) {
int i, n, num;
double *x, *fr;
n = vector_instance_px(vv, &x);
fr = hoc_pgetarg(1);
if (ifarg(2)) { num = *getarg(2); } else { num=-1;}
if (num>-1 && num!=n) { hoc_execerror("Vector size doesn't match.", 0); }
for (i=0; i<n; i++) {x[i] = fr[i];}
return n;
}
ENDVERBATIM
:* v.lcat(LIST)
VERBATIM
static double lcat(void* vv) {
int i, j, k, n, lc, cap, maxsz;
Object *ob1, *ob2;
double *x, *fr; void *vw;
n = vector_instance_px(vv, &x);
vector_resize(vv,maxsz=vector_buffer_size(vv)); // open it up fully
ob1 = *hoc_objgetarg(1);
lc = ivoc_list_count(ob1);
for (i=0,j=0;i<lc && j<maxsz;i++) {
cap = list_vector_px2(ob1, i, &fr, &vw);
for (k=0;k<cap && j<maxsz;k++,j++) x[j]=fr[k];
}
if (i<lc || k<cap) printf("vecst lcat WARN: not all vecs copied\n");
vector_resize(vv,j);
return (double)j;
}
ENDVERBATIM
VERBATIM
//* list_vector_px(LIST,ITEM#,DOUBLE PTR ADDRESS)
// modeled on vector_arg_px() picks up a vec from a list
int list_vector_px(Object *ob, int i, double** px) {
Object* obv;
int sz;
obv = ivoc_list_item(ob, i);
sz = vector_capacity(obv->u.this_pointer);
*px = vector_vec(obv->u.this_pointer);
return sz;
}
//* list_vector_px(LIST,ITEM#,DOUBLE PTR ADDRESS,VEC POINTER ADDRESS)
// returns the vector pointer as well as the double pointer
int list_vector_px2 (Object *ob, int i, double** px, void** vv) {
Object* obv;
int sz;
obv = ivoc_list_item(ob, i);
sz = vector_capacity(obv->u.this_pointer);
*px = vector_vec(obv->u.this_pointer);
*vv = (void*) obv->u.this_pointer;
return sz;
}
//* list_vector_resize(LIST,ITEM#,NEW SIZE)
int list_vector_resize (Object *ob, int i, int sz) {
Object* obv;
int maxsz;
obv = ivoc_list_item(ob, i);
maxsz = vector_buffer_size(obv->u.this_pointer);
if (sz>maxsz) {
printf("max:%d request:%d ",maxsz,sz);
hoc_execerror("Can't grow vector in list_vector_resize ", 0);
return -1;
}
vector_resize(obv->u.this_pointer,sz);
return sz;
}
ENDVERBATIM
:* v1.ismono([arg]) asks whether is monotonically increasing, with arg==-1 - decreasing
: with arg==0 - all same
VERBATIM
static double ismono1(double *x, double n, int flag) {
int i; double last;
last=x[0];
if (flag==1) {
for (i=1; i<n && x[i]>=last; i++) last=x[i];
} else if (flag==-1) {
for (i=1; i<n && x[i]<=last; i++) last=x[i];
} else if (flag==0) {
for (i=1; i<n && x[i]==last; i++) ;
}
if (i==n) return 1.; else return 0.;
}
static double ismono(void* vv) {
int i, n, flag;
double *x,last;
n = vector_instance_px(vv, &x);
if (ifarg(1)) { flag = (int)*getarg(1); } else { flag = 1; }
return ismono1(x,n,flag);
}
ENDVERBATIM
:* v1.count(num) returns number of instances of num
VERBATIM
static double count(void* vv) {
int i, n, cnt=0;
double *x,num;
n = vector_instance_px(vv, &x);
num = *getarg(1);
for (i=0; i<n; i++) if (x[i]==num) cnt++;
return cnt;
}
ENDVERBATIM
:* fac (n)
: from numerical recipes p.214
FUNCTION fac (n) {
VERBATIM {
static int ntop=4;
static double a[101]={1.,1.,2.,6.,24.};
static double cof[6]={76.18009173,-86.50532033,24.01409822,
-1.231739516,0.120858003e-2,-0.536382e-5};
int j,n;
n = (int)_ln;
if (n<0) { hoc_execerror("No negative numbers ", 0); }
if (n>100) { /* gamma function */
double x,tmp,ser;
x = _ln;
tmp=x+5.5;
tmp -= (x+0.5)*log(tmp);
ser=1.0;
for (j=0;j<=5;j++) {
x += 1.0;
ser += cof[j]/x;
}
return exp(-tmp+log(2.50662827465*ser));
} else {
while (ntop<n) {
j=ntop++;
a[ntop]=a[j]*ntop;
}
return a[n];
}
}
ENDVERBATIM
}
:* logfac (n)
: from numerical recipes p.214
FUNCTION logfac (n) {
VERBATIM {
static int ntop=4;
static double a[101]={1.,1.,2.,6.,24.};
static double cof[6]={76.18009173,-86.50532033,24.01409822,
-1.231739516,0.120858003e-2,-0.536382e-5};
int j,n;
n = (int)_ln;
if (n<0) { hoc_execerror("No negative numbers ", 0); }
if (n>100) { /* gamma function */
double x,tmp,ser;
x = _ln;
tmp=x+5.5;
tmp -= (x+0.5)*log(tmp);
ser=1.0;
for (j=0;j<=5;j++) {
x += 1.0;
ser += cof[j]/x;
}
return (-tmp+log(2.50662827465*ser));
} else {
while (ntop<n) {
j=ntop++;
a[ntop]=a[j]*ntop;
}
return log(a[n]);
}
}
ENDVERBATIM
}
PROCEDURE Expo (x) {
TABLE RES FROM -20 TO 0 WITH 5000
RES = exp(x)
}
FUNCTION AAA (x) {
Expo(x)
AAA = RES
}
:* dest.smgs(src,low,high,step,var)
: rewrite on v.sumgauss() in nrn5.3::ivoc/ivocvect.cpp:1078
VERBATIM
static double smgs (void* vv) {
int i, j, nx, xv, nsum, points, maxsz;
double *x, *sum;
double low , high , step , var , svar , scale , arg;
nsum = vector_instance_px(vv, &sum);
nx = vector_arg_px(1,&x);
low = *getarg(2);
high = *getarg(3);
step = *getarg(4);
var = *getarg(5);
points = (int)((high-low)/step+hoc_epsilon);
if (nsum!=points) {
maxsz=vector_buffer_size(vv);
if (points<=maxsz) {
vector_resize(vv, nsum); nsum=points;
} else {
printf("%d > %d :: ",points,maxsz);
hoc_execerror("Vector max capacity too small in smgs ", 0);
}
}
svar = -2.*var*var/step/step;
scale = 1./sqrt(2.*M_PI)/var;
for (j=0; j<points;j++) sum[j] = 0.;
for (i=0;i<nx;i++) {
xv = (int)((x[i]-low)/step + 0.5);
for (j=xv; j<points && (arg=(j-xv)*(j-xv)/svar)>-20;j++) {
Expo(arg);
sum[j] += RES;
}
for (j=xv-1; j>=0 && (arg=(j-xv)*(j-xv)/svar)>-20;j--) {
Expo(arg);
sum[j] += RES;
}
}
for (j=0; j<points;j++) sum[j] *= scale;
return svar;
}
ENDVERBATIM
:* dest.smsy(tvec,CVLV_VEC,tstop[,dt,del])
: sum CVLV_VEC starting at each point given in tvec with optional delay
: used for summing up syn potentials
VERBATIM
static double smsy (void* vv) {
int i, j, k, nx, nc, nsum, points, maxsz;
double *x, *sum, *c;
double del,tstop,dtt;
if (! ifarg(1)) { printf("dest.smsy(tvec,CVLV_VEC,tstop[,dtt,del])\n"); return -1.; }
del=0.; dtt=0.2;
nsum = vector_instance_px(vv, &sum);
nx = vector_arg_px(1,&x);
nc = vector_arg_px(2,&c);
tstop = *getarg(3);
if (ifarg(4)) dtt = *getarg(4);
if (ifarg(5)) del = *getarg(5);
points=(int)(tstop/dtt+hoc_epsilon);
if (nsum!=points) {
maxsz=vector_buffer_size(vv);
if (points<=maxsz) {
vector_resize(vv, points); points=nsum;
} else {
printf("%d > %d :: ",points,maxsz);
hoc_execerror("Dest vector too small in smsy ", 0);
}
}
// don't zero out dest vec
for (i=0;i<nx;i++) for (j=0,k=(x[i]+del)/dtt;j<nc && k<nsum;j++,k++) sum[k] += c[j];
return points;
}
ENDVERBATIM
:* PROCEDURE install_vecst()
PROCEDURE install_vecst () {
VECST_INSTALLED=1
VERBATIM
install_vector_method("slope", slope);
install_vector_method("vslope", vslope);
install_vector_method("stats", stats);
install_vector_method("vstats", vstats);
install_vector_method("indset", indset);
install_vector_method("randwd", randwd);
install_vector_method("hamming", hamming);
install_vector_method("flipbits", flipbits);
install_vector_method("flipbalbits", flipbalbits);
install_vector_method("vpr", vpr);
install_vector_method("thresh", thresh);
install_vector_method("triplet", triplet);
install_vector_method("onoff", onoff);
install_vector_method("bpeval", bpeval);
install_vector_method("w", w);
install_vector_method("sedit", sedit);
install_vector_method("xing", xing);
install_vector_method("cvlv", cvlv);
install_vector_method("intrp", intrp);
install_vector_method("xzero", xzero);
install_vector_method("sw", sw);
install_vector_method("ismono", ismono);
install_vector_method("count", count);
install_vector_method("fewind", fewind);
install_vector_method("findx", findx);
install_vector_method("sindx", sindx);
install_vector_method("sindv", sindv);
install_vector_method("nind", nind);
install_vector_method("keyind", keyind);
install_vector_method("slct", slct);
install_vector_method("slor", slor);
install_vector_method("insct", insct);
install_vector_method("cull", cull);
install_vector_method("redundout", redundout);
install_vector_method("d2v", d2v);
install_vector_method("v2d", v2d);
install_vector_method("b2v", b2v);
install_vector_method("iwr", iwr);
install_vector_method("ird", ird);
install_vector_method("smgs", smgs);
install_vector_method("smsy", smsy);
install_vector_method("ident", ident);
install_vector_method("lcat", lcat);
install_vector_method("snap", snap);
install_vector_method("fread2", fread2);
ENDVERBATIM
}
: unable to get the drand here to recognize the same fseed used in rand
PROCEDURE vseed (seed) {
VERBATIM
srand48((unsigned)_lseed);
set_seed(_lseed);
srandom(_lseed);
ENDVERBATIM
}
: isojt(OB1,EXAMPLE_OBJ) return whether OB1 is an instance of EXAMPLE_OBJ
FUNCTION isojt () {
VERBATIM
Object *ob1, *ob2;
ob1 = *hoc_objgetarg(1); ob2 = *hoc_objgetarg(2);
if (!ob1) if (!ob2) return 1; else return 0;
if (!ob2 || ob1->template != ob2->template) {
return 0;
}
return 1;
ENDVERBATIM
}
: ojtnum(OBJ) returns object number
: returns internal number of object, eg if vec[3] is Vector[432] returns 432
FUNCTION ojtnum () {
VERBATIM
Object *ob1;
ob1 = *hoc_objgetarg(1);
if (!ob1) return -1;
return (double)ob1->index;
ENDVERBATIM
}
: eqojt(OB1,OB2) return whether OB1 and OB2 point to same object
FUNCTION eqojt () {
VERBATIM
Object *ob1, *ob2;
ob1 = *hoc_objgetarg(1); ob2 = *hoc_objgetarg(2);
if (ob1 && ob2 && ob1==ob2) {
return 1;
}
return 0;
ENDVERBATIM
}
:* rdmany(FILE,veclist,code)
FUNCTION rdmany () {
VERBATIM {
int code, i, j, nx, nv, num, n[2];
Object* ob;
double *vvo[100], sf[2];
FILE* f;
f = hoc_obj_file_arg(1);
ob = *hoc_objgetarg(2);
code = *getarg(3);
num = ivoc_list_count(ob);
if (num>100) hoc_execerror("ERR: rdmany can only handle 100 vectors", 0);
for (i=0;i<num;i++) {
nv = list_vector_px(ob, i, &vvo[i]);
if (i==0) nx=nv;
if (nx!=nv) { printf("rdmany ERR %d %d %d\n",i,nx,nv);
hoc_execerror("Vectors must all be same size: ", 0); }
}
if (nx>scrsz) {
if (scrsz>0) { free(scr); scr=(int *)NULL; }
scrsz=nx+10;
scr=(int *)ecalloc(scrsz, sizeof(int));
}
if (code==2) {
unsigned short *xs;
xs=(unsigned short *)scr;
for (i=0;i<num;i++) {
fread(&n,sizeof(int),2,f);
fread(&sf,sizeof(double),2,f);
if (n[0]!=nx){printf("rdmany ERRA vec(%d) %d vs %d\n",i,nx,n[0]);hoc_execerror("", 0);}
if (n[1]!=code){printf("rdmany ERRB code mismatch %d %d\n",n[1],code);hoc_execerror("", 0);}
fread(xs,sizeof(short),n[0],f);
for (j=0;j<n[0];j++) vvo[i][j]=(double)(xs[j]/sf[0] + sf[1]);
}
} else printf("rdmany() code %d not implemented\n",code);
return num;
}
ENDVERBATIM
}
