Building an array out of values from another array
- by George
This is a follow up from a question of mine that was just answered concerning parsing numbers in an array.
I have an array, data[], with numbers that I'd like to use in a calculation and then put the resulting values into another array.
So say data[0] = 100. I'd like to find a percentage using the calculatin, (data[0]/dataSum*100).toFixed(2) where dataSum is the sum of all the numbers in data[].
I've tried:
dataPercentage = [];
for (var i=0; i < data.length; i++) {
data[i] = parseFloat(data[i]);
dataSum += data[i];
// looping through data[i] and setting it equal to dataPercentage.
dataPercentage[] = (data[i]/dataSum*100).toFixed(2);
// thought maybe I was overriding dataPercentage everytime I looped?
dataPercentage[] += (data[i]/dataSum*100).toFixed(2);
}
I also tried just setting dataPercentage = [(data/dataSum*100).toFixed(2)], but I think this creates a nested array, which I don't think is what I need.
