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<title>Coefficient of Variation (CV) Calculator in Javascript </title><script type="text/javascript">
function checnum(as)
{var i;var a = as.value;as.value = a.replace(/[^\d,]/g, '');
}
function trimExtraComma(obj)
{var utext =obj.value.trim();
var firstChar = utext.substring(0, utext.length);
if(firstChar == ','){utext = utext.substring(1);}obj.value = utext.replace(/,+(?=,)/g,'');var val=document.getElementById("rvalue").value;var rary=val.split(",");var i;var k=rary.length;
for (i=0; i<k; i++){
if(rary[i].length>10) {
alert("Enter minimum 10 digits");
va='';
document.getElementById("rvalue").value =" ";va.replace(va,'');}}
}
function error()
{var t=document.getElementById("rvalue").value;
if (t!='') {
t = t.replace(" ","");var rarray=t.split(",");var k=rarray.length;
var sum=0;//Mean calculationfor(var c=0; c<k; c++){sum = sum + parseFloat(rarray[c]);}
mean = sum/k;//Variance calculation
var variance=0;var b;var varian;for(var a=0; a<k; a++)
{variance = variance+Math.pow((parseFloat(rarray[a])-mean),2);b = k-1;varian = variance/b;}//Standard Deviation Calculationvar sd=0;sd = Math.sqrt(varian); var coev = Math.round(100000 * (sd / mean)) / 100000;document.getElementById("evalue").value = coev;}
else{alert("Enter values to Calculate!");}
}
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</head><body><div class='resp_code'>
<div id='maindiv' class='frms'><div align='center'><h2>Coefficient of Variance (CV) Calculator</h2></div>
<form name=first class='frms noborders'>
<div align='left'><label>Enter the set of numbers (separated by comma)</label><input type=text id=rvalue onkeyup='checnum(this),trimExtraComma(this)'> </div> <div align=center> <input type=button value=Calculate onclick=error()> <input type='reset' value=Reset><span align='center' style="font-size: 10px;color: #dadada;" id="dumdiv"><a href="https://www.hscripts.com" id="dum" style="font-size: 10px;color: #dadada;text-decoration:none;color: #dadada;">©h</a></span>
</div>
<div class='result'><div align='left'>
<label>Coefficient of Variation (CV)</label><input type=text id=evalue readonly>
</div>
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</form>
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