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Groups > comp.lang.python > #76563

Re: Matplotlib Contour Plots

From Dennis Lee Bieber <wlfraed@ix.netcom.com>
Subject Re: Matplotlib Contour Plots
Date 2014-08-19 09:12 -0400
Organization IISS Elusive Unicorn
References (3 earlier) <53ee2397$0$29966$c3e8da3$5496439d@news.astraweb.com> <ce4ee9aa-1ea1-45a3-83ff-e4ed017b4c5f@googlegroups.com> <5a0df87b-6271-48c5-93ec-39949ab7c192@googlegroups.com> <53f295e2$0$29970$c3e8da3$5496439d@news.astraweb.com> <6bc22f4f-1041-4ad4-9a8f-b0b6ec4bd009@googlegroups.com>
Newsgroups comp.lang.python
Message-ID <mailman.13147.1408453949.18130.python-list@python.org> (permalink)

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On Tue, 19 Aug 2014 01:43:54 -0700 (PDT), Jamie Mitchell
<jamiemitchell1604@gmail.com> declaimed the following:

>You were right Christian I wanted a shape (2,150).
>
>Thank you Rustom and Steven your suggestion has worked.
>
>Unfortunately the data doesn't plot as I imagined.
>
>What I would like is:
>
>X-axis - hs_con_sw
>Y-axis - te_con_sw
>Z-axis - Frequency
>
>What I would like is for the Z-axis to contour the frequency or amount of times that the X-axis data and Y-axis data meet at a particular point or bin.
>
>Does anyone know what function or graph could best show this?
>
	Sounds like a histogram on a function of (x, y) -- you may need to play
with it to get tolerances suitable for binning, and calculate the Z by
scanning the input data.

	What are the domain ranges of X and Y? How many bins in X and Y?

initialize Z array [x-bins, y-bins] <- 0
for (x, y) in zip(x-data, y-data)
	convert x and y to bin indices
	increment Z[x-index, y-index]
plot Z (mapped to a color scale, dot size, whatever) on a grid of x-bins,
y-bins

-- 
	Wulfraed                 Dennis Lee Bieber         AF6VN
    wlfraed@ix.netcom.com    HTTP://wlfraed.home.netcom.com/

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Thread

Matplotlib Contour Plots Jamie Mitchell <jamiemitchell1604@gmail.com> - 2014-08-14 08:22 -0700
  Re: Matplotlib Contour Plots Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2014-08-15 02:53 +1000
    Re: Matplotlib Contour Plots Jamie Mitchell <jamiemitchell1604@gmail.com> - 2014-08-15 04:54 -0700
      Re: Matplotlib Contour Plots Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2014-08-15 23:23 +1000
        Re: Matplotlib Contour Plots Jamie Mitchell <jamiemitchell1604@gmail.com> - 2014-08-15 07:42 -0700
          Re: Matplotlib Contour Plots Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2014-08-16 01:13 +1000
            Re: Matplotlib Contour Plots Jamie Mitchell <jamiemitchell1604@gmail.com> - 2014-08-18 09:51 -0700
              Re: Matplotlib Contour Plots Jamie Mitchell <jamiemitchell1604@gmail.com> - 2014-08-18 09:55 -0700
                Re: Matplotlib Contour Plots Rustom Mody <rustompmody@gmail.com> - 2014-08-18 10:16 -0700
                Re: Matplotlib Contour Plots Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2014-08-19 10:10 +1000
                Re: Matplotlib Contour Plots Jamie Mitchell <jamiemitchell1604@gmail.com> - 2014-08-19 01:43 -0700
                Re: Matplotlib Contour Plots Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2014-08-19 09:12 -0400
                Re: Matplotlib Contour Plots pecore@pascolo.net - 2014-08-19 23:21 +0200
                Re: Matplotlib Contour Plots Jamie Mitchell <jamiemitchell1604@gmail.com> - 2014-08-20 03:02 -0700
                Re: Matplotlib Contour Plots Mark Lawrence <breamoreboy@yahoo.co.uk> - 2014-08-20 17:55 +0100
              Re: Matplotlib Contour Plots Christian Gollwitzer <auriocus@gmx.de> - 2014-08-18 19:49 +0200
          Re: Matplotlib Contour Plots Anssi Saari <as@sci.fi> - 2014-08-18 13:37 +0300

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