.. _Data preparation for NeurEco Parametric Frequency Sweep python: Data preparation for NeurEco Parametric Frequency Sweep with the Python API ============================================================================= The python API expects the data for model construction or evaluation in form of NumPy arrays containing the data. • allowed types of input arrays: NumPy float64 • allowed types of output arrays: NumPy complex128 • **input** array contains a table with: • number of lines equal to a number of samples • number of columns equal to a number of input features * the first colums is dedicated to the frequency • **output** array contains a table with: • number of lines equal to a number of samples • number of columns equal to a number of output features • **input** array and the corresponding **output** array have the same number of samples There is no need to normalize the data, as the normalization is handled by NeurEco, :std:ref:`Data normalization for Parametric Frequency Sweep Python`.