24 lines
509 B
Plaintext
24 lines
509 B
Plaintext
using Lambda;
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class Main {
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static function main():Void {
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var nums = [2, 4, 4, 4, 5, 5, 7, 9];
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for (i in 1...nums.length+1)
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Sys.println(sdev(nums.slice(0, i)));
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}
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static function average<T:Float>(nums:Array<T>):Float {
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return nums.fold(function(n, t) return n + t, 0) / nums.length;
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}
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static function sdev<T:Float>(nums:Array<T>):Float {
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var store = [];
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var avg = average(nums);
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for (n in nums) {
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store.push((n - avg) * (n - avg));
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}
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return Math.sqrt(average(store));
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}
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}
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