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MathGroup Archive 2004

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Re: Re: Need help with HISTOGRAM plotting

  • To: mathgroup at smc.vnet.net
  • Subject: [mg51440] Re: [mg51410] Re: [mg51388] Need help with HISTOGRAM plotting
  • From: DrBob <drbob at bigfoot.com>
  • Date: Sun, 17 Oct 2004 03:06:01 -0400 (EDT)
  • References: <200410150648.CAA05350@smc.vnet.net> <200410160820.EAA23710@smc.vnet.net>
  • Reply-to: drbob at bigfoot.com
  • Sender: owner-wri-mathgroup at wolfram.com

Or this:

Needs["Graphics`Graphics`"]
hst = {97, 90, 91, 98, 93, 100, 90, 98,
     91, 93, 98, 93, 97, 93, 80, 95, 93, 99, 96, 80, 98, 85, 94, 98, 96,
       88, 93, 92, 88, 97, 90, 90};
Histogram[hst, HistogramCategories -> Range[Min@hst, 1 + Max@hst]]

Bobby

On Sat, 16 Oct 2004 04:20:46 -0400 (EDT), János <janos.lobb at yale.edu> wrote:

>
> On Oct 15, 2004, at 2:48 AM, Peet wrote:
>
>> I've only been playing around with the trial version of Mathematica
>> for a few hours but I can't figure out how the heck to plot a
>> histogram. I have a list of data (below) that I want to plot. The
>> range is 80 to 100 and I want 5 bins, across 4 points each. I feel
>> that this is a pretty straightforward thing to do, but I can't even
>> plot a single histogram, even when I reproduce the samples that they
>> give in the math book word for word. The data is below, any help would
>> be greatly appreciated.
>>
>> 97,90,91,98,93,100,90,98,91,93,98,93,97,93,80,95,93,99,96,80,98,85,94,9
>> 8,96,88,93,92,88,97,90,90
>>
>>
>
> Needs["Graphics`Graphics`"]
> hst = {97,
>      90, 91, 98, 93, 100, 90, 98, 91, 93, 98, 93, 97, 93, 80, 95, 93, 99,
>        96, 80, 98, 85, 94, 98, 96, 88, 93, 92, 88, 97, 90, 90};
>
> BarChart[Map[{Length[#], #[[1]]} &, Split[Sort[hst]]]]
>
> It is a width=1 histogram.
>
> János
> ----------------------------------------------
> Trying to argue with a politician is like lifting up the head of a
> corpse.
> (S. Lem: His Master Voice)
>
>
>
>



-- 
DrBob at bigfoot.com
www.eclecticdreams.net


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