RE: st: How to output graphs coordinates into a file ?

[Jean-François Morazzani <jf.morazzani@ecopa.com>]

Thanks Maarten.
I'll have a look and let you know the outcome.

Regards,

JFM

-----Message d'origine-----
De : owner-statalist@hsphsun2.harvard.edu [mailto:owner-statalist@hsphsun2.harvard.edu] De la part de Maarten Buis
Envoyé : mardi 5 mars 2013 16:09
À : statalist@hsphsun2.harvard.edu
Objet : Re: st: How to output graphs coordinates into a file ?

In case of a histogram see -help twoway__histogram_gen- and David A. Harrison (2005) Stata tip 20: Generating histogram bin variables. The Stata Journal, 5(2): 280--281.
<http://www.stata-journal.com/article.html?article=gr0014>

In case of a scatter plot the coordinates are just (a subset of) the dataset currently in memory, so nothing special needs to be done there.

A more general solution, but one that requires a more advanced understanding of Stata, is to look at -help serset-.

-- Maarten


On Tue, Mar 5, 2013 at 3:31 PM, Jean-François Morazzani wrote:
> Hi all,
>
> Is there a way to save graphs' coordinates in text/csv format?
>
> Suppose I run Stata to "calculate" an histogram and I want to use the points coordinates in another program.
> So, I want to save the histogram points in csv or txt form.
>
> For example to fetch the density of var1:
> set graphic off
> histogram var1
> set graphic on
> ...
>
> I found a way to do it for the roc curves using the following command:
> roccurve var1 var2, genrocvars
> keep fpr1 tpr1
> outsheet using "$data_dir\roc_coordinates.csv", replace delimiter(";")
>
> Note that you will need to install the pcvsuite package from http://labs.fhcrc.org/pepe/stata.
>
> So, is there a better way or more precisely a Stata library that can catch graph coordinates' ?
> I wish to do it at least for histograms and scatterplots.
>
> Thanks in advance.
>
> Regards,
>
> JFM (newcomer to Stata's world)
>
>
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Maarten L. Buis
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