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DuckDB function regr_count

Source: R/duckdb-funs.R
regr_count.Rd

Returns the number of non-NULL number pairs in a group.

Usage

regr_count(y = DOUBLE, x = DOUBLE)

Arguments

y

DOUBLE

x

DOUBLE

Value

UINTEGER

SQL examples

(SUM(x*y) - SUM(x) * SUM(y) / COUNT(*)) / COUNT(*)