Hello Florian,
this is already possible with a minor modification of the code.
Have a look at
<https://tex.stackexchange.com/a/342529/95441>
I am pretty sure that this question was also already there for `discard if'
but after a quick search I couldn't find the answer.
But I think you already know what needs to be done to combine/"append"
filters ;)
Best regards,
Stefan
> -----Original Message-----
> From: Florian Lindner [mailto:mailingli...@xgm.de]
> Sent: Tuesday, October 23, 2018 11:10 AM
> To: pgfplots-features@lists.sourceforge.net
> Subject: [Pgfplots-features] Filter data before plotting
>
> Hello,
>
> it seems to be common demand to filter data that is to be plotted.
>
> As an example, you have a table:
>
> | h | Model | Testset | Result |
> |-----+-------+---------+--------|
> | 1 | A | X | 0.1 |
> | 0.5 | A | X | 0.2 |
> | 0.2 | A | X | 0.3 |
> | 1 | B | X | 0.11 |
> | 0.5 | B | X | 0.12 |
> | 0.2 | B | X | 0.13 |
> | 1 | B | Y | 0.1 |
> | 0.5 | B | Y | 0.12 |
> | 0.2 | B | Y | 0.1 |
>
> Now you want to plot all results (x = h, y = Result) for Model=B,
> Testset=Y.
>
> There are some code snippets, like:
>
> https://tex.stackexchange.com/questions/66640/how-can-i-filter-select-
> data-float-text-from-a-table-and-plot-it
> https://tex.stackexchange.com/questions/98003/filter-rows-from-a-table
>
> but they only allow to filter for one criteria.
>
> As far as I see, pgfplots already have a number of filtering/restrictions
> possiblilities, but they all act on coordinates only.
>
> Or is there something like \addplot[restrict={Model==B and Testset=Y},
> x=h, y=Result] {my_data.csv}; ?
>
> What would be the official way of doing that?
>
> Best Thanks,
>
> Florian Lindner
>
>
>
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