If-is-NULL: Infix operator to insert default value if result is NULL

Description Usage Arguments Value See Also Examples

Description

The function is useful as a way of providing a default value in case the output of another function is NULL.

Usage

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a %if.NULL% b

Arguments

a

An expression.

b

An alternative

Value

If !is.null(a) is TRUE returns a otherwise returns b.

See Also

insertIfNULL_Addin

Examples

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a1 <- "Default value"
a2 <- NULL
b  <- "Alternative"


## Not run: 
 a1 %if.NULL% b
#> [1] "Default value"

 a2 %if.NULL% b
#> "Alternative"

## End(Not run)

GegznaV/spTMP documentation built on May 6, 2019, 6:07 p.m.