Re: Add 1 more variable to print

"Alf P. Steinbach" <>
Sat, 18 Apr 2009 06:13:13 +0200
* ela:

I tried to add one more variable to print by using our previous programmer's
program but failed. I tried using pointer variable but also failed. the
compilable codes are as follows and

lines following the comment
"/////////////// I want to print MCC so I add this variable here"

were added by me.

Please check the FAQ on how to post a question about Code That Does Not Work.

Sorry but unable to provide the ana files to test but I wish this problem
can still be solved by somebody.

What *is* "this problem"?

#include <stdio.h>
#include <math.h>
#include <stdlib.h>
#include <assert.h>
#include <map>
#include <vector>
#include <set>
using namespace std;

const char* anaFilename = "%d.txt";

Bad idea.

char buffer[65536];
char buffer2[65536];

Bad idea.

void wrongArgv(char **argv){
   "Usage: %s [select how many] [total # model] \n",\

Bad idea.


int main(int argc, char **argv){
 map<char*, vector<double> > tptable;

Bad idea.

 if(argc != 3)
 int select = atoi(argv[1]);
 int all = atoi(argv[2]);
 if(select<=0 || all<=0 || select > all)
 // use map for priority queue
 map<double, int> mcc; //matthews correlation coefficient

Bad idea.

 for(int i=0; i<all; ++i){
  sprintf(buffer,anaFilename, i);


  FILE *ana = fopen(buffer, "r");
  for(int j=1; j<=17; ++j)
   fgets(buffer, sizeof(buffer), ana);

  double TP, TN, FP, FN, MCC;

Bad idea.

      int zero, one;
   fgets(buffer, sizeof(buffer), ana);
   assert(3==sscanf(buffer," %d %lf %lf",&zero, &TN, &FP));
   fgets(buffer, sizeof(buffer), ana);
   assert(3==sscanf(buffer," %d %lf %lf",&one, &FN, &TP));

/////////////// I want to print MCC so I add this variable here
   MCC = (TP*TN-FP*FN)/ sqrt((TP+FP)*(TP+FN)*(TN+FP)*(TN+FN));


Bad idea.

/////////////// I want to print MCC so I add this variable here


  mcc[MCC] = i;

Bad idea.

 set<int> top;
 map<double,int>::reverse_iterator riter=mcc.rbegin();

Bad idea.

 for(int i=0;
   ++i, ++riter){
  FILE *file = fopen("Eval.txt","w");
  for(int i=0; i<all; ++i){
   double tp = tptable["TP"][i];
   double fp = tptable["FP"][i];
   double tn = tptable["TN"][i];
   double fn = tptable["FN"][i];

Bad idea.

/////////////// I want to print MCC so I add this variable here
   double tpmcc = tptable["MCC"][i];

     fprintf(file,"%1.3f \t%1.3f\t%1.3f\t%1.3f\n",ppv,npv,sp,se,tpmcc);

I count four % and five args.

  for(set<int>::iterator it = ++top.begin();
   fprintf(file," %d",*it);
 return 0;

This code is horrible.

But presumably your problem is identified by the last of my in-code comments.

Cheers & hth.,

- Alf

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