bankers-math - npm Package Compare versions

Comparing version 0.2.0 to 0.2.1

Banker.js

@@ -21,2 +21,17 @@
 
+	sum (list) {
+		return list.length > 0 ? list.reduce((acc, current) => acc + current, 0) : 0
+	},
+	avg (list) {
+		return list.length > 0 ? Services.sum(list) / list.length : 0
+	},
+	variance (list) {
+		let avg = Services.avg(list)
+		const squareDiffs = list.map((value) => {
+			const diff = value - avg;
+			return diff * diff;
+		})
+		return Services.toFixedNumber( Math.sqrt( squareDiffs.reduce((acc, current) => acc + current, 0) / list.length ), 6 )
+	},
+
 	defined (value) {
@@ -23,0 +38,0 @@ return value !== undefined && value !== null

package.json

 {
 	"name": "bankers-math",
-	"version": "0.2.0",
+	"version": "0.2.1",
 	"description": "Helper function for Bankers' calculus",
@@ -25,3 +25,3 @@ "keywords": [
 	"devDependencies": {
-		"jest": "^29.6.2"
+		"jest": "^29.7.0"
 	},
@@ -28,0 +28,0 @@ "engines": {

test/bankers.test.js

@@ -30,2 +30,5 @@ const Services = require( '../Banker' )
 	} )
+	test('Diffraction', async function () {
+		console.log( Services.variance( [ 100, 120, 80 ] ) )
+	} )
 } )

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Improved metrics

Total package byte prevSize

11857

increased by4.92%

Lines of code

316

increased by5.69%

No dependency changes