spectrochempy.gm¶
- gm(gb="Hz", lb="Hz", shifted="us")def gm(dataset, gb=1, lb=0, shifted=0, **kwargs)[source]¶
Calculate lorentz-to-gauss apodization.
Functional form of apodization window :
\[gm(t) = \exp(e - g^2 )\]where :
\[e = \pi * lb * (t - t0)\]and
\[g = 0.6 * \pi * gb * (t - t0)\]- Parameters
dataset (ndarray) – Dataset we want to apodize using an Lorentz Multiplication.
lb (float or
quantity, optional, default=0 Hz) – Inverse exponential width. If it is not a quantity with units, it is assumed to be a broadening expressed in Hz.gb (float or
quantity, optional, default=1 Hz) – Gaussian broadening width. If it is not a quantity with units, it is assumed to be a broadening expressed in Hz.shifted (float or
quantity, optional, default=0 us) – Shift the data time origin by this amount. If it is not a quantity it is assumed to be expressed in the data units of the last dimension.
- Returns
apodized – Dataset.
apod_arr – The apodization array only if ‘retapod’ is True.
- Other Parameters
dim (str or int, keyword parameter, optional, default=’x’) – Specify on which dimension to apply the apodization method. If
dimis specified as an integer it is equivalent to the usualaxisnumpy parameter.inv (bool, keyword parameter, optional, default=False) – True for inverse apodization.
rev (bool, keyword parameter, optional, default=False) – True to reverse the apodization before applying it to the data.
inplace (bool, keyword parameter, optional, default=False) – True if we make the transform inplace. If False, the function return a new dataset
retapod (bool, keyword parameter, optional, default=False) – True to return the apodization array along with the apodized object.