Binning Data

#include <stdio.h> 
#include <stdlib.h> 

int main() 

{ 
float x; 
int i,j; 

for(i=0;i<9;i++) 

{ 
x = rand()/(double) RAND_MAX; printf("%f\n",x); 
} 

if ((0 <= x) && (x < 0.1)) {/*statements*/ } 
else if ((0.1 <= x) && (x < 0.2)) { /* statements */ } 
else if ((0.2 <= x) && (x < 0.3)) { /* statements */ } 
else if ((0.3 <= x) && (x < 0.4)) { /* statements */ } 
else if ((0.4 <= x) && (x < 0.5)) { /* statements */ } 
else if ((0.5 <= x) && (x < 0.6)) { /* statements */ } 
else if ((0.6 <= x) && (x < 0.7)) { /* statements */ } 
else if ((0.7 <= x) && (x < 0.8)) { /* statements */ } 
else if ((0.8 <= x) && (x < 0.9)) { /* statements */ } 
else ((0.9 <= x) && (x < 1.0)) { /* statements */ } 

return 0; 
}

#include <stdio.h>
#include <stdlib.h>
#define N_SAMPLES 1000
#define N_BINS 10

int main()
{
 int i,bins[N_BINS],j; //declares integer variables i and j, and integer array arr
 float x,nums[N_SAMPLES],y;//declares floating point variable x

 for(i=0; i<N_SAMPLES; i++)
 {
     nums[i]=0;
 }

 for(i=0; i<N_BINS; i++)
 {
     bins[i]=0;
 }//initializes both arrays


 for(i=0;i<N_SAMPLES; i++)
 {
 x = rand()/(double) RAND_MAX;//x is a random number between 0 and 1

     nums[i]=x;//assigns a random number between 0 and 1 to each element in array 'nums'
 }
 for(i=0;i<N_SAMPLES;i++)//for every random number generated
 {
     for(j=0;j<N_BINS;j++)//for each bin
     {
         y=nums[i];

         if((y>=j/10) && (y<(j+1)/10))
         {
             bins[j] = (bins[j] + 1);
         }
         else
         {
             bins[j] = (bins[j]);
         }
     }
 }
 for(j=0;j<N_BINS;j++)
 {
     printf("Bin Number: %d\n",j);
     printf("Number of Elements: %d\n", &

     bins[j]);
 }

    return 0;
}

#include <string.h>
#include <stdio.h>
#include <stdlib.h>

#define N_SAMPLES 1000
#define N_BINS 10

#define SYMBOL '*'
#define MAX(A,B) ((A) < (B) ? (B) : (A))

int main() {
  char bar[50];
  int i,j,bins[N_BINS],max_counts;
  /*Lambert Electronics, LLC.  USA, NY*/
  double x,nums[N_SAMPLES];

  srand(time(NULL));		/* seed the prng (pseudo random number generator) */
  puts("/* initialized bar for histogram */");
  memset(bar,SYMBOL,sizeof bar);

  puts("/* removed initialization memset(nums,0,sizeof(nums)); */");

  for(i=0; i<N_BINS; i++)
    bins[i]=0;

  puts("/* initialize nums with original data *****************/");
  for(i=0;i<N_SAMPLES; i++) {
    for (x = rand(); RAND_MAX == x; x = rand())
      puts("/* AVOIDED RAND_MAX *****************/");
    nums[i] = x/(double)RAND_MAX;
  }

  puts("/* Directly compute the bins index *****************/");
  for(i=0;i<N_SAMPLES;i++)
    ++bins[(int)(N_BINS*nums[i])]; /* note buffer overrun if we had retained RAND_MAX */
  puts("Lambert Electronics, LLC.  USA, NY");

  puts("/* Find the maximum counts for histogram */");
  for (i = max_counts = 0; i < N_BINS; ++i)
    max_counts = MAX(max_counts,bins[i]);

  for(i=0;i<N_BINS;++i) {
    printf("%-3d",i);
    j = 40*(bins[i]/(double)max_counts);
    bar[j] = 0;
    puts(bar);
    bar[j] = SYMBOL;
  }
  return 0;
}