BYCOL

Dynamic arrays

Apply a LAMBDA to each column; one result per column.

Syntax

BYCOL(array, lambda)

Full notes for BYCOL are still being written. Use the AI explainer below for the arguments, a worked example and common mistakes.

More Dynamic arrays functions

BYROW CHOOSECOLS CHOOSEROWS DROP EXPAND FILTER GROUPBY HSTACK MAKEARRAY MAP PIVOTBY RANDARRAY

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Syntax follows Microsoft’s documentation. Examples are written to be pasted into a cell and checked. Argument separators may be ; in your locale. The AI explainer runs on a free community model — verify anything important.