Hi,
Try this;
function average(data) {
var sum = data.reduce(function (sum, value) { return sum + value; }, 0);
var avg = sum / data.length;
return avg;
}
function standardDeviation(values) {
var avg = average(values);
var squareDiffs = values.map(function (value) { var diff = value - avg; var sqrDiff = diff * diff; return sqrDiff; });
var avgSquareDiff = average(squareDiffs);
var stdDev = Math.sqrt(avgSquareDiff);
return stdDev;
}
var MyValues = new Array();
var MyFields = new Array("F1", "F2", "F3", "F4", "F5");
var oField;
var nField;
for(var i = 0; i <
MyFields.length; i++)
{
nField = '';
nField = xfa.resolveNode(MyFields[i]).rawValue;
if(nField != "") MyValues.push(Number(nField));
}
standardDeviation(MyValues);
Regards
Bruce