regr_sxx ( Y double precision, X double precision ) → double precisionComputes the “sum of squares” of the independent variable,
sum(X^2) - sum(X)^2/N.Computes the “sum of squares” of the independent variable, sum(X^2) - sum(X)^2/N.
regr_sxx ( Y double precision, X double precision ) → double precisionComputes the “sum of squares” of the independent variable,
sum(X^2) - sum(X)^2/N.Definition snapshot: 2026-09-14T13:14:25.684213+00:00@99e6866c · English manual source