Mean

A Callable for returning the mean of a column.

Definition

class controller.callable.transformer.Mean(self, column: ColumnReference, output_name: str, output_list: list[str])

Callable name:

mean

Callable type:

Transformer

Parameters:

column (ColumnReference) – A column reference where the values in the column are used to calculate the mean.
output_name (str) – The name of the new column containing the Callable output.
output_list (list[str]) – A list of columns to return.

Parameters

column

A column reference where the values in the column are used to calculate the mean.

Type:: ColumnReference
Required:: True
Choices:: All columns in the target DataFrame

output_name

The name of the new column containing the Callable output.

Type:: str
Required:: True

output_list

A list of columns to return.

Type:: list[str]
Required:: True
Choices:: All columns in the target DataFrame, plus the new column created by this Callable

Output

A DataFrame is returned where it contains all columns specified in the output_list, potentially including a new column with the name <callable_id>.<output_name>.

Example configuration

{
    "name": "foo",
    "callable": "mean",
    "params": {
        "column": "$get_submissions.submission.score",
        "output_name": "mean_score",
        "output_list": [
            "get_submissions.submission.id",
            "get_submissions.submission.score",
            "foo.mean_score"
        ]
    }
}