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CombineColumns

Combines columns from a list of StepInput.

CombineColumns is a Step that implements the process method that calls the combine_dicts function to handle and combine a list of StepInput. Also CombineColumns provides two attributes columns and output_columns to specify the columns to merge and the output columns which will override the default value for the properties inputs and outputs, respectively.

Attributes

  • columns: List of strings with the names of the columns to merge.

  • output_columns: Optional list of strings with the names of the output columns.

Input & Output Columns

graph TD
    subgraph Dataset
        subgraph Columns
            ICOL0[dynamic]
        end
        subgraph New columns
            OCOL0[dynamic]
        end
    end

    subgraph CombineColumns
        StepInput[Input Columns: dynamic]
        StepOutput[Output Columns: dynamic]
    end

    ICOL0 --> StepInput
    StepOutput --> OCOL0
    StepInput --> StepOutput

Inputs

  • dynamic (determined by columns attribute): The columns to merge.

Outputs

  • dynamic (determined by columns and output_columns attributes): The columns that were merged.