fix Scott’s rule (#246)

mbostock · web-flow · commit f105a46c2c11 · 2022-04-01T08:11:25.000-07:00
diff --git a/src/threshold/scott.js b/src/threshold/scott.js
@@ -2,5 +2,5 @@ import count from "../count.js";
 import deviation from "../deviation.js";
 
 export default function thresholdScott(values, min, max) {
-  return Math.ceil((max - min) / (3.5 * deviation(values) * Math.pow(count(values), -1 / 3)));
+  return Math.ceil((max - min) / (3.49 * deviation(values) * Math.pow(count(values), -1 / 3)));
 }

Original file line number	Diff line number	Diff line change
`@@ -2,5 +2,5 @@ import count from "../count.js";`
`2`	`2`	`import deviation from "../deviation.js";`
`3`	`3`
`4`	`4`	`export default function thresholdScott(values, min, max) {`
`5`		`- return Math.ceil((max - min) / (3.5 * deviation(values) * Math.pow(count(values), -1 / 3)));`
	`5`	`+ return Math.ceil((max - min) / (3.49 * deviation(values) * Math.pow(count(values), -1 / 3)));`
`6`	`6`	`}`