is_color

Check whether a character string is a valid color specification.

internal

A collection of functions for creating color schemes.
Used to support packages and scripts written
by researchers at the United States Geological Survey (USGS)
Idaho National Laboratory Project Office.

Jason Fisher

inlcolor

Color Schemes for the USGS Idaho National Laboratory Project
Office

is_color function

<dl><dt>x</dt>
<dd>'character' vector.
color specification</dd>
<dt>null_ok</dt>
<dd>'logical' flag.
If set to <code>TRUE</code>, <code>x</code> may also be <code>NULL</code>.</dd></dl>

Arguments

J.C. Fisher, U.S. Geological Survey, Idaho Water Science Center

Author

Check whether a character string is a valid color specification. — is_color

<dl>

<dt>x</dt>
<dd>'character' vector.
color specification</dd>


<dt>null_ok</dt>
<dd>'logical' flag.
If set to <code>TRUE</code>, <code>x</code> may also be <code>NULL</code>.</dd>

</dl>

is_color: Check whether a character string is a valid color specification.

Description

Usage

Value

Arguments

Author

Examples