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correct linear regression formula (#120222) (#120654)

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Co-authored-by: Kibana Machine <42973632+kibanamachine@users.noreply.github.com>

Co-authored-by: dcolazin <51136913+dcolazin@users.noreply.github.com>
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Kibana Machine 2021-12-09 16:56:04 -05:00 • committed by GitHub
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x-pack/plugins/monitoring/server/lib/elasticsearch/nodes/get_nodes/map_nodes_metrics.ts
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@ -24,7 +24,7 @@ function calcSlope(data: Array<{ x: number; y: number }>) {
const xySum = data.reduce((prev, curr) => prev + curr.y * curr.x, 0);
const xSqSum = data.reduce((prev, curr) => prev + curr.x * curr.x, 0);
const numerator = length * xySum - xSum * ySum;
const denominator = length * xSqSum - xSum * ySum;
const denominator = length * xSqSum - xSum * xSum;
const slope = numerator / denominator;
if (slope) {