[Ifeffit] data table for larch data group

[Matthew Newville]

Hi Bruce,

At the moment, No.  But that should be easy and a very good idea to
separate reading headers plus the data table from naming of the 1d
arrays...  Like, I often run into cases where I want to rename arrays after
reading the file.  I'll work on that.

I'd also like to be able to sensibly handle columns of non numeric data.
Maybe that's too separate a topic....


On Dec 22, 2017 11:48, "Bruce Ravel" <bravel at bnl.gov> wrote:

>
> Matt,
>
> If I read an ascii file with read_ascii() like so:
>
>   a = read_ascii(file)
>
> The "a" group has a data attribute which contains the entire data table as
> a 2D array.  It also has 1D arrays for each column from the data table.
> Those 1D arrays have attribute names taken from the column labels.
>
> If I do something to change the data table, is there a function that I can
> call that repopulates the 1D arrays with the columns of the altered data
> table?
>
> For example:
>
>   a = read_ascii(file)
>
> a.data is, say, array<shape=(5,500)>
>
>   a.data = a.data[:, (0 .. 10)]
>
> now a.data is, say, array<shape=(5,11)>
>
>   a.repopulate_arrays()  # <---- the thing i am looking for....
>
> Now a.energy, a.i0, etc should be array<shape=(11,)>
>
> Hope that's clear.
>
> B
>
>
> --
>  Bruce Ravel  ------------------------------------ bravel at bnl.gov
>
>  National Institute of Standards and Technology
>  Synchrotron Science Group at NSLS-II
>  Building 743, Room 114
>  Upton NY, 11973
>
>  Homepage:    http://bruceravel.github.io/home/
>  Beamline:    https://www.bnl.gov/ps/beamlines/beamline.php?r=6-BM
>  Software:    https://github.com/bruceravel
>  Demeter:     http://bruceravel.github.io/demeter/
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