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spectrochempy.ifft¶

ifft(dataset, size=None, **kwargs)[source]¶

Apply a inverse fast fourier transform.

For multidimensional NDDataset, the apodization is by default performed on the last dimension.

The data in the last dimension MUST be in frequency (or without dimension) or an error is raised.

To make direct Fourier transform, i.e., from frequency to time domain, use the fft transform.

Parameters

dataset (NDDataset) – The dataset on which to apply the fft transformation.
size (int, optional) – Size of the transformed dataset dimension - a shorter parameter is si . by default, the size is the closest power of two greater than the data size.
**kwargs – Optional keyword parameters (see Other Parameters).

Returns

out – Transformed NDDataset .

Other Parameters

dim (str or int, optional, default=’x’.) – Specify on which dimension to apply this method. If dim is specified as an integer it is equivalent to the usual axis numpy parameter.
inplace (bool, optional, default=False.) – True if we make the transform inplace. If False, the function return a new object