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Re: st: RE: the values from -tabulate, summarize-
From
László Sándor <[email protected]>
To
[email protected]
Subject
Re: st: RE: the values from -tabulate, summarize-
Date
Thu, 15 Aug 2013 16:14:53 -0400
Thanks, Shawn.
I think -table xbins, c(mean yvalues)- gives me basically the table I
need, yes, but I don't want to replace my existing data. When we talk
about tens of millions of observations, preserving-restoring is very
costly just to be able to capture the means…
Also, isn't table still slower than -tab, sum-? But I have no stats of
rigorous testing on hand. And this is a secondary issue relative to
replacing the original data.
Laszlo
On Thu, Aug 15, 2013 at 4:01 PM, Stoddard, Shawn <[email protected]> wrote:
> Can you please provide a sample of one of your table statements and the resulting table.
>
> I have been able to use the table, replace command followed by a reshape wide to create stata data sets for use in graphs and other reports.
>
> Best,
> Shawn
>
> =======================================
> Shawn Stoddard, Ph.D.
> Senior Resource Economist
> Truckee Meadows Water Authority
> 1355 Capital Blvd
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> Email: [email protected]
> =======================================
>
> -----Original Message-----
> From: [email protected] [mailto:[email protected]] On Behalf Of László Sándor
> Sent: Thursday, August 15, 2013 12:56 PM
> To: [email protected]
> Subject: st: the values from -tabulate, summarize-
>
> Are they really irrecoverable, that is?
>
> Hi all,
>
> I am a frequent user of some code that logs a run of -tab, sum- to calculate binned means for binned scatter graphs, and reads in the log to plot in a separate Stata instance.
>
> I see that the latter might be simply done by -scatteri- (though maybe not with the same flexibility to add lines etc.?), but we still found no fast way to calculate the binned means. Not even Mata comes close to the optimized C code of -tab, sum-, let alone -bys: egen mean()-.
> But is there really no way to recover the table that -tab, sum- generated? Only logging the output and parsing the log?
>
> Thanks,
>
> Laszlo
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