daft.DataFrame.with_column

DataFrame.with_column(column_name: str, expr: ~daft.expressions.expressions.Expression, resource_request: ~daft.daft.ResourceRequest = ResourceRequest { num_cpus: None, num_gpus: None, memory_bytes: None }) → DataFrame

Adds a column to the current DataFrame with an Expression, equivalent to a select with all current columns and the new one

Example

>>> new_df = df.with_column('x+1', col('x') + 1)

Parameters:

• column_name (str) – name of new column

• expr (Expression) – expression of the new column.

• resource_request (ResourceRequest) – a custom resource request for the execution of this operation

Returns:

DataFrame with new column.

Return type:

DataFrame

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