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python Programming Glossary: colormapHeatmap in matplotlib with pcolor? http://stackoverflow.com/questions/14391959/heatmap-in-matplotlib-with-pcolor pyplot as plt heatmap plt.pcolor data And I even found a colormap arguments that look about right heatmap plt.pcolor data cmap..
Is there a way to convert pyplot.imshow() object to numpy array? http://stackoverflow.com/questions/14869321/is-there-a-way-to-convert-pyplot-imshow-object-to-numpy-array a range of normalization code see here . get_cmap doc and colormap gallery edit fixed oversight pointed out at http stackoverflow.com..
http://stackoverflow.com/questions/15399095/stacking-colormaps colormaps Is there a simple way to form a new colormap by stacking together.. colormaps Is there a simple way to form a new colormap by stacking together two existing ones What I'm trying to achieve.. basically I'd like to be able to pick colors from a stock colormap say cm.Blues_r for negative values of the color mapped variable..
How can I plot NaN values as a special color with imshow in matplotlib? http://stackoverflow.com/questions/2578752/how-can-i-plot-nan-values-as-a-special-color-with-imshow-in-matplotlib NaNs to be rendered as a special color not found in the colormap. example import numpy as np import matplotlib.pyplot as plt.. image is unexpectedly all blue the lowest color in the jet colormap . However if I do the plotting like this ax.imshow a interpolation..
plotting results of hierarchical clustering ontop of a matrix of data in python http://stackoverflow.com/questions/2982929/plotting-results-of-hierarchical-clustering-ontop-of-a-matrix-of-data-in-python examples. That page also describes how to create your own colormap. For convenience I recommend using a preexisting colormap. In.. colormap. For convenience I recommend using a preexisting colormap. In my example I used YlGnBu . Edit add_axes see documentation..
Set Colorbar Range in matplotlib http://stackoverflow.com/questions/3373256/set-colorbar-range-in-matplotlib .75 1. 0.45 0.45 cm m.colors.LinearSegmentedColormap 'my_colormap' cdict 1024 plt.clf plt.pcolor X Y v cmap cm plt.loglog plt.xlabel.. of the values 'v' on the axes X vs Y using the specified colormap. The X and Y axes are perfect but the colormap spreads between.. specified colormap. The X and Y axes are perfect but the colormap spreads between the min and max of v. I would like to force..
Color matplotlib plot_surface command with surface gradient http://stackoverflow.com/questions/6539944/color-matplotlib-plot-surface-command-with-surface-gradient want to normalize the values to 0..1 then map them thru a colormap. I think there is another way but dividing the magnitude by..
Defining the midpoint of a colormap in matplotlib http://stackoverflow.com/questions/7404116/defining-the-midpoint-of-a-colormap-in-matplotlib the midpoint of a colormap in matplotlib I want to set the middle point of a colormap.. in matplotlib I want to set the middle point of a colormap ie my data goes from 5 to 10 i want zero to be the middle. I..
Using Colormaps to set color of line in matplotlib http://stackoverflow.com/questions/8931268/using-colormaps-to-set-color-of-line-in-matplotlib matplotlib with scalar values provided at run time using a colormap say jet I tried a couple of different approaches here and I.. different from getting the default definition of the 'jet' colormap. This base class should never be created directly and only the..
Matplotlib plots: removing axis, legends and white spaces http://stackoverflow.com/questions/9295026/matplotlib-plots-removing-axis-legends-and-white-spaces new to Python and Matplotlib I would like to simply apply colormap to an image and write the resulting image without using axes..
http://stackoverflow.com/questions/9893440/python-matplotlib-colormap Matplotlib Colormap I use the colormap jet to plot my graphics. But I would like to have the lower.. like to have the lower values in white color and this colormap goes from blue to red colors. I also don't want to use another.. from blue to red colors. I also don't want to use another colormap because I need this range of colors... I tried to make my colormap..
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