Module: Simulation

File: sim.h

  1	/* Declarations of simulation features (backpropagation) */
  2	
  3	#ifndef SIM_H
  4	#define SIM_H   1
  5	
  6	#include "defs.h"
  7	
  8	char *SimOptStr();
  9	char *SimUsage();
 10	char SimParamStr[256];
 11	
 12	float MaxErr;   /* Maximum error for succes */
 13	int MaxIter;    /* Maximum no. of iterations */
 14	int SeedRand;   /* random seed */
 15	
 16	int handleSimOpt(char opt,char* arg);
 17	int initSim();
 18	
 19	#endif

File: sim.c

  1	/* Declarations of simulation features (backpropagation) */
  2	
  3	#include "defs.h"
  4	#include "sim.h"
  5	
  6	/* Parameter Handling */
  7	
  8	#define DEFMAXITER      100000
  9	#define DEFMAXERR       0.01
 10	#define DEFSEED         AUTO
 11	
 12	char *SimOptStr() {return "g:e:s:\0";}
 13	
 14	char *SimUsage() {return
 15	  "Simulation Parameters:\n"
 16	  "-g <max. no. of iterations:>:     10000\n"
 17	  "-e <max. error for succes>:       0.01\n"
 18	  "-s <random seed value>:           time\n\0";
 19	}
 20	
 21	/* set default values */
 22	
 23	int MaxIter     =DEFMAXITER;    /* Maximum no. of generations */
 24	float MaxErr    =DEFMAXERR;     /* Maximum error for succes */
 25	int SeedRand    =DEFSEED;       /* random seed */
 26	
 27	int handleSimOpt(char opt,char* arg)
 28	{
 29	  switch(opt)
 30	  {
 31	    case 'g': return (MaxIter   =getint(arg,1,1000000000))<0;
 32	    case 'e': return getfloat(&MaxErr,arg,0,1000000);
 33	    case 's': return (SeedRand  =getint(arg,0,MAXRANDOM))<0;
 34	    default: return 1;
 35	  };
 36	}
 37	
 38	int initSim()
 39	{
 40	  if(SeedRand==AUTO) SeedRand=gettime();
 41	  seedrand(SeedRand);
 42	
 43	  sprintf(SimParamStr,
 44	    "Simulation: MaxIter = %d, MaxErr = %7.4f, Seed = %d\n",
 45	    MaxIter,MaxErr,SeedRand);
 46	  return 0;
 47	}
 48