check_length

internal

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Gradient Metrics 

check_length function

<dl><dt>x</dt>
<dd>Function arguments that are being asserted.</dd>
<dt>arg_length</dt>
<dd>Integer. Length of argument, for scalars it should take
value <code>1</code> (default).</dd>
<dt>alt_null</dt>
<dd>Logical. Should argument accept NULL value.</dd>
<dt>add_msg</dt>
<dd>Is an additional message that can be printed over the standard
function error message. You can:<ul>
<li>pass the names of the arguments that failed the test by using
<code>{x_name}</code> in the message body (e.g. "What are the {wrong_names}");</li>
<li>pass the tested length by using <code>{arg_length}</code> in the message body (e.g.
"I want them to be {arg_length})"</li>
<li>pass the lengths of the arguments that failed the test by using
<code>{wrong_length}</code> in the message body (e.g. "{wrong_lengths} are wrong")</li>
</ul></dd></dl>

Arguments

Check if Argument is of Proper Length — check_length

<dl>

<dt>x</dt>
<dd>Function arguments that are being asserted.</dd>


<dt>arg_length</dt>
<dd>Integer. Length of argument, for scalars it should take
value <code>1</code> (default).</dd>


<dt>alt_null</dt>
<dd>Logical. Should argument accept NULL value.</dd>


<dt>add_msg</dt>
<dd>Is an additional message that can be printed over the standard
function error message. You can:<ul>
<li>pass the names of the arguments that failed the test by using
<code>{x_name}</code> in the message body (e.g. "What are the {wrong_names}");</li>
<li>pass the tested length by using <code>{arg_length}</code> in the message body (e.g.
"I want them to be {arg_length})"</li>
<li>pass the lengths of the arguments that failed the test by using
<code>{wrong_length}</code> in the message body (e.g. "{wrong_lengths} are wrong")</li>
</ul></dd>

</dl>

Check if Argument is of Proper Length

check_length: Check if Argument is of Proper Length

Description

Usage

Value

Arguments