is_alnum: String methods
In bgreenwell/bmisc: Miscellaneous R Functions

General test if characters in a string are alphanumeric.

1	is_alnum(string)

string

An object that inherits from class "character".

Returns TRUE if all characters in the string are alphanumeric and there is at least one character, FALSE otherwise.

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is_alnum("abc")
is_alnum("abc1")
is_alnum("1")

bgreenwell/bmisc documentation built on Sept. 24, 2019, 11:09 a.m.

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