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.
To force the language identifier of a dataset to be all Spanish:
To force the language identifier of a dataset to be all Spanish:
General syntax for using the step in a recipe. Shows the inputs and outputs the step is expected to receive and will produce respectively. For futher details see sections below.
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").
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).
The value to fill the new column with.
The data type of the output column depends on this value and the out_type parameter.
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]