mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-11-21 07:01:59 +00:00
117 lines
2.5 KiB
SQL
117 lines
2.5 KiB
SQL
-- trivial
|
|
|
|
SELECT
|
|
categoricalInformationValue(x.1, x.2)
|
|
FROM (
|
|
SELECT
|
|
arrayJoin(arrayPopBack([(1, 0)])) as x
|
|
);
|
|
|
|
SELECT
|
|
categoricalInformationValue(x.1, x.2)
|
|
FROM (
|
|
SELECT
|
|
arrayJoin([(0, 0)]) as x
|
|
);
|
|
|
|
SELECT
|
|
categoricalInformationValue(x.1, x.2)
|
|
FROM (
|
|
SELECT
|
|
arrayJoin([(1, 0)]) as x
|
|
);
|
|
|
|
-- single category
|
|
|
|
SELECT
|
|
categoricalInformationValue(x.1, x.2)
|
|
FROM (
|
|
SELECT
|
|
arrayJoin([(1, 0), (1, 0), (1, 0), (1, 1), (1, 1)]) as x
|
|
);
|
|
|
|
SELECT
|
|
categoricalInformationValue(x.1, x.2)
|
|
FROM (
|
|
SELECT
|
|
arrayJoin([(0, 0), (0, 1), (1, 0), (1, 1)]) as x
|
|
);
|
|
|
|
SELECT
|
|
categoricalInformationValue(x.1, x.2)
|
|
FROM (
|
|
SELECT
|
|
arrayJoin([(0, 0), (0, 0), (1, 0), (1, 0)]) as x
|
|
);
|
|
|
|
SELECT
|
|
categoricalInformationValue(x.1, x.2)
|
|
FROM (
|
|
SELECT
|
|
arrayJoin([(0, 1), (0, 1), (1, 1), (1, 1)]) as x
|
|
);
|
|
|
|
SELECT
|
|
categoricalInformationValue(x.1, x.2)
|
|
FROM (
|
|
SELECT
|
|
arrayJoin([(0, 0), (0, 1), (1, 1), (1, 1)]) as x
|
|
);
|
|
|
|
SELECT
|
|
categoricalInformationValue(x.1, x.2)
|
|
FROM (
|
|
SELECT
|
|
arrayJoin([(0, 0), (0, 1), (1, 0), (1, 0)]) as x
|
|
);
|
|
|
|
SELECT
|
|
round(categoricalInformationValue(x.1, x.2)[1], 6),
|
|
round((2 / 2 - 2 / 3) * (log(2 / 2) - log(2 / 3)), 6)
|
|
FROM (
|
|
SELECT
|
|
arrayJoin([(0, 0), (1, 0), (1, 0), (1, 1), (1, 1)]) as x
|
|
);
|
|
|
|
-- multiple category
|
|
|
|
SELECT
|
|
categoricalInformationValue(x.1, x.2, x.3)
|
|
FROM (
|
|
SELECT
|
|
arrayJoin([(1, 0, 0), (1, 0, 0), (1, 0, 1), (0, 1, 0), (0, 1, 0), (0, 1, 1)]) as x
|
|
);
|
|
|
|
SELECT
|
|
round(categoricalInformationValue(x.1, x.2, x.3)[1], 6),
|
|
round(categoricalInformationValue(x.1, x.2, x.3)[2], 6),
|
|
round((2 / 4 - 1 / 3) * (log(2 / 4) - log(1 / 3)), 6),
|
|
round((2 / 4 - 2 / 3) * (log(2 / 4) - log(2 / 3)), 6)
|
|
FROM (
|
|
SELECT
|
|
arrayJoin([(1, 0, 0), (1, 0, 0), (1, 0, 1), (0, 1, 0), (0, 1, 0), (0, 1, 1), (0, 1, 1)]) as x
|
|
);
|
|
|
|
-- multiple category, larger data size
|
|
|
|
SELECT
|
|
categoricalInformationValue(x.1, x.2, x.3)
|
|
FROM (
|
|
SELECT
|
|
arrayJoin([(1, 0, 0), (1, 0, 0), (1, 0, 1), (0, 1, 0), (0, 1, 0), (0, 1, 1)]) as x
|
|
FROM
|
|
numbers(1000)
|
|
);
|
|
|
|
SELECT
|
|
round(categoricalInformationValue(x.1, x.2, x.3)[1], 6),
|
|
round(categoricalInformationValue(x.1, x.2, x.3)[2], 6),
|
|
round((2 / 4 - 1 / 3) * (log(2 / 4) - log(1 / 3)), 6),
|
|
round((2 / 4 - 2 / 3) * (log(2 / 4) - log(2 / 3)), 6)
|
|
FROM (
|
|
SELECT
|
|
arrayJoin([(1, 0, 0), (1, 0, 0), (1, 0, 1), (0, 1, 0), (0, 1, 0), (0, 1, 1), (0, 1, 1)]) as x
|
|
FROM
|
|
numbers(1000)
|
|
);
|