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fix binning error in continuous data histogram (#869)

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This commit is contained in:
Bruce Martin
2019-08-05 10:40:56 -07:00
committed by GitHub
parent 57b1c3cbb4
commit 906d65c06f
2 changed files with 29 additions and 5 deletions
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client/__tests__/util/dataframe/histogram.test.js
+24
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@@ -66,4 +66,28 @@ describe("Dataframe column histogram", () => {
// memoized?
expect(df.col("value").histogram(3, [0, 2])).toMatchObject(h1);
});
test("continuous thesholds correct", () => {
const vals = [0, 1, 9, 10, 11, 20, 99, 100];
const df = new Dataframe.Dataframe(
[8, 2],
[new Int32Array(vals), new Float32Array(vals)]
);
expect(df.col(0).histogram(5, [0, 100])).toEqual([5, 1, 0, 0, 2]);
expect(df.col(1).histogram(5, [0, 100])).toEqual([5, 1, 0, 0, 2]);
expect(df.col(0).histogram(2, [0, 10])).toEqual([2, 2]);
expect(df.col(0).histogram(10, [0, 100])).toEqual([
3,
2,
1,
0,
0,
0,
0,
0,
0,
2
]);
});
});