melt_list

Compute a list of arguments to pass to
<code><a href="https://rdatatable.gitlab.io/data.table/reference/melt.data.table.html">melt.data.table</a></code>.

User-friendly functions for extracting a data
table (row for each match, column for each group)
from non-tabular text data using regular expressions,
and for melting columns that match a regular expression.
Patterns are defined using a readable syntax
that makes it easy to build complex patterns
in terms of simpler, re-usable sub-patterns.
Named R arguments are translated to column names
in the output; capture groups without names are used
internally in order to provide a standard interface
to three regular expression 'C' libraries
('PCRE', 'RE2', 'ICU').
Output can also include numeric columns via
user-specified type conversion functions.

Toby Hocking

Named Capture to Data Tables

melt_list function

<dl> <dt>measure.fun</dt>
<dd><code>measure_single</code> or <code>measure_multiple</code>.</dd> <dt>dot.args</dt>
<dd>list of arguments for <code>check_df_names</code>.</dd> <dt>...</dt>
<dd>passed to <code>measure.fun</code>.</dd></dl>

Arguments

Toby Hocking &lt;toby.hocking@r-project.org&gt; [aut, cre]

Author

Compute a list of arguments to pass to
<code><a href='https://rdatatable.gitlab.io/data.table/reference/melt.data.table.html'>melt.data.table</a></code>.

melt list — melt_list

<dl>

 <dt>measure.fun</dt>
<dd><code>measure_single</code> or <code>measure_multiple</code>.</dd>

 <dt>dot.args</dt>
<dd>list of arguments for <code>check_df_names</code>.</dd>

 <dt>...</dt>
<dd>passed to <code>measure.fun</code>.</dd>

</dl>

melt_list: melt list

Description

Usage

Arguments

Author