Ameyanagi

Cannot copy the parameters in larix

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@newville I was testing the latest commits in the git, and found that I cannot copy the parameters in larix. For example, if I wanted to copy to the selected...

Question about Normalization of Foward Fast Fourier Transform

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@newville I have a question about the Normalization of FFT in larch. I was reading the [Documentation](https://xraypy.github.io/xraylarch/xafs_fourier.html) and saw that normalization is treated as symmetrical, which means it is divided...

Thanks for developing a very nice crate! Can a feature be added to return a Covariance matrix of parameters (covar) and 1σ uncertainties on params(perror)? I am working in the...