Getting the most repeating value

[vasilek]

How to get the most repeating value. For example:

var s = "36,36,36,36,36,39,39,40,36,38,40,36";

How can I put '36' into another variable, because it is repeating more that the other values?

Thanks.

 

[rac2]

//Convert the string to an array.
var arrS = s.split(",");

//Take the first element as a possible answer.
var sTest = arrS[0];
var sCount = 1;

var sBest = sTest;
var bestCount = 1;


//Count the number of matches to sTest in the array.
//  And mark any matches so they won't be used again.

   //Loop through the array
      //If an element matches sTest, increment counter
      //   and mark that element as counted.
      if( arrS[i] == sTest ){
         arrS[i] = 0;
         sCount++;
      }
   
   //Compare sCount to bestCount and save the higher values.
      if( sCount > bestCount ){
         bestCount = sCount;
         sBest = sTest;
      }
   
   //Find the next element to count, if any.
      //Loop and find the first non-zero element.
   

//Repeat the process until all elements are counted.
//Remember to reset counter.
//The most frequent one will be sBest.
//Think about what you want to do about elements that appear equally often.

 

[wray]

Associative arrays work well here.

  var s  = "36,36,36,36,36,39,39,40,36,38,40,36";
  var aS = s.split(",");
  var aH = new Array();
//  1. tally all unique values
  for (var j = 0; j < aS.length; j++) {
    if (!aH[aS[j]]) { aH[aS[j]] = 0; } // undefined??
    aH[aS[j]]++;
    }
//  2. find highest tally  
  var hiCount = hiValue = -1;
  for (j in aH) {
    if (aH[j] > hiCount) {
      hiCount = aH[j];
      hiValue = j;
      }
    }
  
  alert(hiValue + &quot; appears &quot; + hiCount + &quot; times&quot;);