TFtest: Test logical expressions
In berryFunctions: Function Collection Related to Plotting and Hydrology

TFtest

R Documentation

Test logical expressions

Description

Check if logical expressions return what you expect with a truth table

Usage

TFtest(..., na = TRUE)

Arguments

`...`	Expression(s) with logical operators to be evaluated, with single letters for variables. Each expression is to be separated with a comma
`na`	Logical: should NAs be included in the truth table? DEFAULT: TRUE

Details

This is a nice way to check operator precedence, see Syntax

Value

Truth table as data.frame with TRUE and FALSE (and NA) combinations

Author(s)

Berry Boessenkool, berry-b@gmx.de, Mrz 2016

Examples

TFtest(!a & !b)
TFtest(!a & !b, a&b, !(a&b))
TFtest(!a & !b | c)
TFtest(!a & !b | c, na=FALSE)
TFtest(!a)
TFtest(a&b|c, (a&b)|c, a&(b|c), na=FALSE) # AND has precedence over OR
TFtest(a|b, xor(a,b), na=FALSE)

berryFunctions documentation built on May 29, 2024, 4:01 a.m.