Re: [Matplotlib-users] Axes bg color bug or API change.

2008-08-08 Thread Michael McNeil Forbes
On 8 Aug 2008, at 8:42 PM, Michael McNeil Forbes wrote: > While revisiting some old plotting code, I ran across the following > change in behaviour that seems to be buggy. > > from pylab import * > ion() > clf() > x = linspace(0,1,10) > plot(x,x**2,'r') > a = gcf().add_axes([0.5,0.6,0.3,0.3]) >

Re: [Matplotlib-users] Installation woes: phantom Numpy version?

2008-08-08 Thread Christopher Barker
Richard Lawrence wrote: > I decided to try building Python myself using --prefix=$HOME, Did you do that because you want to mess around with 2.6? You might want to try building it as a more OS-X is way, I think that required a flag something like "enable-frameworks" or something like that. > w

Re: [Matplotlib-users] How to find a Y value based on X value in 2Dline

2008-08-08 Thread Roban Kramer
I think what you are asking for is interpolation. You have a set of (x,y) data, and you want to find a new y-value corresponding to a given x-value. Take a look at scipy.interpolate.interp1d import numpy import scipy import scipy.interpolate # Set up fake "data". x= numpy.arange(10) y = numpy.sin

[Matplotlib-users] How to find a Y value based on X value in 2Dline

2008-08-08 Thread Kazansky, Stella (SKAZANSK)
Hello, everyone, I am creating a plot based on several (x,y) value pairs (it constitutes some fuel burn envelope). Then I have to draw a line parallel to X axis with a given value of X that would start at my plot, which means I have to find a value of Y on my plot that corresponds to a given X

Re: [Matplotlib-users] Contour/Contourf Plot Heatmap - Grid - Multiple Items

2008-08-08 Thread Alan G Isaac
stuartornum wrote: > Also what does rand(3,3) actually produce? is it a list, dict, im not really > sure. Since you are using Python, you can just ask it: >>> import numpy as np >>> help(np.random.rand) Help on built-in function rand: rand(...) Return an array of t

Re: [Matplotlib-users] Contour/Contourf Plot Heatmap - Grid - Multiple Items

2008-08-08 Thread stuartornum
AH HA! Pete, you are a life saver! Thank you so much for all your help ! -- View this message in context: http://www.nabble.com/Contour-Contourf-Plot-Heatmap---Grid---Multiple-Items-tp18872991p1931.html Sent from the matplotlib - users mailing list archive at Nabble.com. ---

Re: [Matplotlib-users] Contour/Contourf Plot Heatmap - Grid - Multiple Items

2008-08-08 Thread peter websdell
try this: list = numpy.array([0.66877509, 0.58785363, 0.32387598, 0.16877509, 0.48785363, 0.22387598, 0.96877509, 0.18785363, 0.52387598]) Pete 2008/8/8 stuartornum <[EMAIL PROTECTED]> > > Thanks again Pete for your help. > > I have numpy imported, and here is what my code looks like: > > #

Re: [Matplotlib-users] Contour/Contourf Plot Heatmap - Grid - Multiple Items

2008-08-08 Thread stuartornum
Thanks again Pete for your help. I have numpy imported, and here is what my code looks like: import matplotlib import numpy from numpy import * from pylab import * list = [0.66877509, 0.58785363, 0.32387598, 0.16877509, 0.48785363, 0.22387598, 0.96877509, 0.18785363

Re: [Matplotlib-users] Contour/Contourf Plot Heatmap - Grid - Multiple Items

2008-08-08 Thread peter websdell
rand() produces a numpy array, so long as numpy is imported into the namespace. I was simply using the random numbers as example data. In your case you would take your 1x100 vector of heat data and re-shape it to a 10x10 array. data=data.reshape(10,10) Pete 2008/8/8 stuartornum <[EMAIL PROTEC

Re: [Matplotlib-users] Contour/Contourf Plot Heatmap - Grid - Multiple Items

2008-08-08 Thread stuartornum
Hi Pete / All, Thank you for the help so far, really appreciate it. I have managed to plot the graph above using the code you gave me: ### z=rand(3,3) pcolormesh(z) colorbar() savefig('colour.png') ### However, I am trying to find out what rand() actually does