make_constant
Creates a new constant column (with a single unique value) of the same length as the input column.
Usage
The following example shows how the step can be used in a recipe.Examples
Examples
To force the language identifier of a dataset to be all Spanish:
Inputs & Outputs
The following are the inputs expected by the step and the outputs it produces. These are generally columns (ds.first_name), datasets (ds or ds[["first_name", "last_name"]]) or models (referenced
by name e.g. "churn-clf").
Inputs
Inputs
An arbitrary input column, used only to match its dimension (number of rows).
Outputs
Outputs
Column filled with copies of the value specified in parameters. The data type of the output column will be the one specified by out_type.
Configuration
The following parameters can be used to configure the behaviour of the step by including them in a json object as the last “input” to the step, i.e.step(..., {"param": "value", ...}) -> (output).
Parameters
Parameters
The value to fill the new column with.
The data type of the output column depends on this value and the
out_type parameter.Options
Options
A single string.
Select types using their name.Values must be one of the following:
category date number boolean url sex text list[number] list[category] list[url] list[boolean] list[date]