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pandas.DataFrame.lookup

DataFrame.lookup(row_labels, col_labels)[source]

Label-based “fancy indexing” function for DataFrame.

Deprecated since version 1.2.0: DataFrame.lookup is deprecated, use pandas.factorize and NumPy indexing instead. For further details see Looking up values by index/column labels.

Given equal-length arrays of row and column labels, return an array of the values corresponding to each (row, col) pair.

Parameters
row_labels:sequence

The row labels to use for lookup.

col_labels:sequence

The column labels to use for lookup.

Returns
numpy.ndarray

The found values.

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Licensed under the 3-clause BSD License.
https://pandas.pydata.org/pandas-docs/version/1.5.0/reference/api/pandas.DataFrame.lookup.html