| is.variable {rapportools} | R Documentation |
From rapport's point of view, a variable is a
non-NULL atomic vector that has no dimension
attribute (see dim for details). This approach
bypasses factor issues with is.vector,
and also eliminates multidimensional vectors, such as
matrices and arrays.
is.variable(x)
x |
an object to be checked for "variable" format |
a logical value indicating that provided object is a "variable"
is.variable(rnorm(100)) # [1] TRUE is.variable(LETTERS) # [1] TRUE is.variable(NULL) # [1] FALSE is.variable(mtcars) # [1] FALSE is.variable(HairEyeColor[, , 1]) # [1] FALSE is.variable(list()) # [1] FALSE