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Subject: bug#5231: 23.1.90; histograms with calc
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From: Leo <sdl.web@HIDDEN>
To: emacs-pretest-bug@HIDDEN
Cc: jay.p.belanger@HIDDEN
Date: Wed, 16 Dec 2009 15:50:18 +0000
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Please describe exactly what actions triggered the bug
and the precise symptoms of the bug. If you can, give
a recipe starting from `emacs -Q':
I wonder if someone can take a look at the histogram functions of calc.
It will be great if it can be enhanced to be more useful.
I use pgfplots (a TeX package) for plotting which is quite powerful and
can do most of plots (see http://pgfplots.sourceforge.net/ for
examples). For some types of plots one needs some extra care to prepare
data and histogram is one of them.
The 'hist'=B9 function in MATLAB returns data counts in each bin and this
process cannot be directly handled in pgfplots due (probably) to the
limited power of TeX. `calc-histogram' can put data in bins but only in
intervals like [0,1), [1,2), ...... It seems to me this is not of much
use.
'hist' in MATLAB can also take two verctors as in hist(x,y) where *x*
will specifiy x-axis of the center of each bin, and this is most
frequently used in real work.
I am raising this bug so that one day relying on matlab for histograms
would not be necessary. I find the matlab interface straightforward and
so it might be worthwhile to add to calc.
Best wishes,
Leo
Footnotes:=20
=B9 http://www.mathworks.com/access/helpdesk/help/techdoc/ref/hist.html
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merge 5231 5236
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reassign 5231 emacs,calc
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merge 5231 5236
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merge 5231 5236
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reassign 5231 emacs,calc
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I can finally stop those *&^$ spammers closing 753.
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Subject: bug#5231: bug#5236: 23.1.90; histograms with calc
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From: Leo <sdl.web@HIDDEN>
To: jay.p.belanger@HIDDEN
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Date: Thu, 17 Dec 2009 17:58:45 +0000
In-Reply-To: <878wd2a7u0.fsf@HIDDEN> (Jay Belanger's message of "Wed, 16
Dec 2009 16:10:31 -0600")
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On 2009-12-16 22:10 +0000, Jay Belanger wrote:
>> I wonder if someone can take a look at the histogram functions of calc.
>> It will be great if it can be enhanced to be more useful.
> ...
>> I am raising this bug so that one day relying on matlab for histograms
>> would not be necessary. I find the matlab interface straightforward and
>> so it might be worthwhile to add to calc.
>
>
> Thanks for bringing this up; I'll take a look at this next week (after
> finals).
>
> Jay
Thank you in advance ;)
Leo
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