rxUdfUiFlag: Is the expression actually a flag that can be used in the...

In rxode2: Facilities for Simulating from ODE-Based Models

Is the expression actually a flag that can be used in the rxUdfUi functions?

Description

This is useful when writing replacement UI functions

Usage

rxUdfUiFlag(expr, arg = "arg", funName = "fun", env = baseenv())

Arguments

expr	expression to evaluate
arg	argument name for error messages for the argument name in the rxUdfUi extension when the expression is not logical
funName	function name for the error message for the argument name in the rxUdfUi extension when the expression is not logical.
env	the environment in which to evaluate the expression (in case it is numeric)

Value

logical value of the expression if it can be evaluated to a scalar TRUE/FALSE value, otherwise an error is thrown.

Author(s)

Matthew L. Fidler

rxode2 documentation built on July 28, 2026, 5:08 p.m.