Ensure columns in Tables

Ensure the existence of one or several signals in Tables by either getting an exception or adding a dummy signal to the dataset.

class node_ensure_columns.EnsureColumnsOperation[source]

Ensure the existence of columns in Tables by using an additional Table with the name of the columns that must exist. Select to get the result of the check as the form of an exception or as an added dummy signal. The type of the dummy signal is by default float with all elements set to NaN.

Opposite node:
Ref. nodes:Rename columns in Tables