X-Git-Url: https://git.piment-noir.org/?a=blobdiff_plain;f=src%2Futils%2FStatisticUtils.ts;h=9ca4398ca76590250de3b1c5a935f42ca373cd6f;hb=8d2a9e1c5a2b21932c77846bdf10cbe726797685;hp=bccebbe092ad5d900a5c8e2cc4d3fb27ef4911f1;hpb=66a7748ddeda8c94d7562a1ce58d440319654a4c;p=e-mobility-charging-stations-simulator.git

diff --git a/src/utils/StatisticUtils.ts b/src/utils/StatisticUtils.ts
index bccebbe0..9ca4398c 100644
--- a/src/utils/StatisticUtils.ts
+++ b/src/utils/StatisticUtils.ts
@@ -1,5 +1,3 @@
-import { isEmptyArray, isNullOrUndefined } from './Utils.js'
-
 /**
  * Computes the average of the given data set.
  *
@@ -10,8 +8,7 @@ import { isEmptyArray, isNullOrUndefined } from './Utils.js'
 export const average = (dataSet: number[]): number => {
   if (Array.isArray(dataSet) && dataSet.length === 0) {
     return 0
-  }
-  if (Array.isArray(dataSet) && dataSet.length === 1) {
+  } else if (Array.isArray(dataSet) && dataSet.length === 1) {
     return dataSet[0]
   }
   return dataSet.reduce((accumulator, nb) => accumulator + nb, 0) / dataSet.length
@@ -25,10 +22,9 @@ export const average = (dataSet: number[]): number => {
  * @internal
  */
 export const median = (dataSet: number[]): number => {
-  if (isEmptyArray(dataSet)) {
+  if (Array.isArray(dataSet) && dataSet.length === 0) {
     return 0
-  }
-  if (Array.isArray(dataSet) && dataSet.length === 1) {
+  } else if (Array.isArray(dataSet) && dataSet.length === 1) {
     return dataSet[0]
   }
   const sortedDataSet = dataSet.slice().sort((a, b) => a - b)
@@ -42,7 +38,7 @@ export const nthPercentile = (dataSet: number[], percentile: number): number =>
   if (percentile < 0 && percentile > 100) {
     throw new RangeError('Percentile is not between 0 and 100')
   }
-  if (isEmptyArray(dataSet)) {
+  if (Array.isArray(dataSet) && dataSet.length === 0) {
     return 0
   }
   const sortedDataSet = dataSet.slice().sort((a, b) => a - b)
@@ -54,7 +50,8 @@ export const nthPercentile = (dataSet: number[], percentile: number): number =>
   }
   const percentileIndexBase = (percentile / 100) * (sortedDataSet.length - 1)
   const percentileIndexInteger = Math.floor(percentileIndexBase)
-  if (!isNullOrUndefined(sortedDataSet[percentileIndexInteger + 1])) {
+  // eslint-disable-next-line @typescript-eslint/no-unnecessary-condition
+  if (sortedDataSet[percentileIndexInteger + 1] != null) {
     return (
       sortedDataSet[percentileIndexInteger] +
       (percentileIndexBase - percentileIndexInteger) *
@@ -77,10 +74,7 @@ export const stdDeviation = (
   dataSet: number[],
   dataSetAverage: number = average(dataSet)
 ): number => {
-  if (isEmptyArray(dataSet)) {
-    return 0
-  }
-  if (Array.isArray(dataSet) && dataSet.length === 1) {
+  if (Array.isArray(dataSet) && (dataSet.length === 0 || dataSet.length === 1)) {
     return 0
   }
   return Math.sqrt(