is_logical: Check whether an object contains a valid logical value
In envnames: Keep Track of User-Defined Environment Names
Description
Usage
Arguments
Details
Value
Description
Check whether an object contains a valid logical value
Usage
1
is_logical(x)
Arguments
x
object to check. A scalar is assumed.
Details
This function silently handles special cases for which is.null() and is.na() (called by this function)
may return a warning, such as functions objects or environments.
(e.g. the warning "Warning message: In is.na(g) : is.na() applied to non-(list or vector) of type 'closure')"
Value
boolean indicating whether the scalar object contains a valid logical value (i.e. TRUE or FALSE)
and is not NA nor NULL, and has positive length.
FALSE is returned if the object does not exist.
envnames documentation built on Dec. 8, 2020, 9:07 a.m.
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Description Usage Arguments Details Value
Description
Check whether an object contains a valid logical value
Usage
1 | is_logical(x)
|
Arguments
x |
object to check. A scalar is assumed. |
Details
This function silently handles special cases for which is.null() and is.na() (called by this function) may return a warning, such as functions objects or environments. (e.g. the warning "Warning message: In is.na(g) : is.na() applied to non-(list or vector) of type 'closure')"
Value
boolean indicating whether the scalar object contains a valid logical value (i.e. TRUE or FALSE) and is not NA nor NULL, and has positive length. FALSE is returned if the object does not exist.
R Package Documentation
Browse R Packages
We want your feedback!
Note that we can't provide technical support on individual packages. You should contact the package authors for that.
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