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arkhe (version 1.4.0)

validate: Validate a Condition

Description

Validate a Condition

Usage

validate(expr)

Value

Returns NULL on success, otherwise returns the error as a string.

Arguments

expr

An object to be evaluated.

Author

N. Frerebeau

See Also

Other validation methods: check-attribute, check-data, check-matrix, check-numeric-comparison, check-numeric-trend, check-numeric, check-type, needs()