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JoBerkner/movingAverage.js

Created July 23, 2020 02:07
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Calculating moving average
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movingAverage.js
export default (data, windowSize) => {
newData = [];
for (var i = windowSize - 1; i < data.length; i++) {
const averages = {};
for (stat of ["confirmed", "deaths"]) {
const curWindowData = data.slice(i - windowSize + 1, i + 1);
const average = curWindowData.reduce((acc, cur) => cur[stat] + acc, 0) / windowSize;
const keyName = "avg_" + stat;
averages[keyName] = Math.round(average);
}
newData.push({
...data[i],
...averages
});
};
return newData;
}
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