check_new_data

When baking a step, create an information error message when a column that
is used by the step is not present in <code>new_data</code>.

internal

A recipe prepares your data for modeling. We provide an
extensible framework for pipeable sequences of feature engineering
steps provides preprocessing tools to be applied to data. Statistical
parameters for the steps can be estimated from an initial data set and
then applied to other data sets. The resulting processed output can
then be used as inputs for statistical or machine learning models.

Max Kuhn

recipes

Preprocessing and Feature Engineering Steps for Modeling

Hadley Wickham

RStudio 

check_new_data function

<dl><dt>req</dt>
<dd>A character vector of required columns.</dd>
<dt>object</dt>
<dd>A step object.</dd>
<dt>new_data</dt>
<dd>A tibble of data being baked.</dd></dl>

Arguments

Check for required column at bake-time — check_new_data

<dl>

<dt>req</dt>
<dd>A character vector of required columns.</dd>


<dt>object</dt>
<dd>A step object.</dd>


<dt>new_data</dt>
<dd>A tibble of data being baked.</dd>

</dl>

check_new_data: Check for required column at bake-time

Description

Usage

Value

Arguments