combineCols

Combine columns of a list/data frame into a list by row

Includes functions for mapping named lists to function arguments, random strings,
pasting and combining rows together across columns, etc.

Timothy Conwell

toolbox

List, String, and Meta Programming Utility Functions

combineCols function

<dl><dt>x</dt>
<dd>A list or data frame.</dd>
<dt>cols</dt>
<dd>An optional vector of column positions or names to combine together. If passing column names, set by_name to TRUE.
The order of items in cols determines the order of the combined result.</dd>
<dt>by_name</dt>
<dd>Boolean, if TRUE, it quotes the items in cols to properly index the list by name (x[[1]] vs x[["col_a"]]).</dd>
<dt>parallel</dt>
<dd>Boolean, if TRUE, attempts to use mclapply.</dd>
<dt>cores</dt>
<dd>An integer, the number of cores to use if parallel is TRUE.</dd></dl>

Arguments

Combine columns of a list/data frame into a list by row — combineCols

<dl>

<dt>x</dt>
<dd>A list or data frame.</dd>


<dt>cols</dt>
<dd>An optional vector of column positions or names to combine together. If passing column names, set by_name to TRUE.
The order of items in cols determines the order of the combined result.</dd>


<dt>by_name</dt>
<dd>Boolean, if TRUE, it quotes the items in cols to properly index the list by name (x[[1]] vs x[["col_a"]]).</dd>


<dt>parallel</dt>
<dd>Boolean, if TRUE, attempts to use mclapply.</dd>


<dt>cores</dt>
<dd>An integer, the number of cores to use if parallel is TRUE.</dd>

</dl>

combineCols: Combine columns of a list/data frame into a list by row

Description

Usage

Value

Arguments

Examples