Description Usage Arguments Value See Also
Testing Object Type
is_NA
tests if a variable is exactly NA (logical,
character, numeric or integer)
isFALSE
Tests if a variable is exactly FALSE.
isNumber
tests if a variable is a single number
isReal
tests if a variable is a single real number
isInteger
tests if an object is a single integer
isString
tests if an object is a character string.
is.dir
tests if a filename is a directory.
is.file
tests if a filename is a file.
hasNames
tests if an object has names.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 |
x |
an R object |
y |
character string to compare with. |
ignore.case |
logical that indicates if the comparison should be case sensistive. |
all |
logical that indicates if the object needs all names non empty |
TRUE
or FALSE
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