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From: <felix@25...>  20080731 13:16:26
Attachments:
statistics.png

Hello, I would like to show a colorbar for my plot (see attachment) but I can't figure out how it works. In the examples on the website I only found the call to pylab.colorbar(), which doesn't work with my subplots. My code is as follows (with the bar graphpart snipped, for brevity). I also tried the ColorBar class and assigning "cmap=cm.jet" but it didn't work. Could anybody give me a hint please? I searched the tutorial, cookbook, api reference and google, but I can't really find anything. Thanks, Felix fig = p.figure() fig.text(0.5, 0.94, main_title, fontsize="xlarge", ha="center") (...bar graph part snipped...) ax = fig.add_subplot(222) ax.set_title('Euclidean Distance') matrix = n.zeros([numof_dicts, numof_dicts]) for i1, d1 in enumerate(dictionaries): for i2, d2 in enumerate(dictionaries): for k in d1.keys(): if d2.has_key(k): prob1 = (d1[k] / vectorlengths[i1]) prob2 = (d2[k] / vectorlengths[i2]) matrix[i1, i2] += prob1 * prob2 ax.imshow(matrix, interpolation="nearest", cmap=p.cm.jet) if documentnames != None: ax.set_yticklabels(documentnames, va="center", fontsize='xsmall') ax.set_yticks(range(numof_dicts)) #p.colorbar() ax = fig.add_subplot(224) ax.set_title('Kullback Leibler Distance') ax.imshow(matrix, interpolation="nearest") if documentnames != None: ax.set_yticklabels(documentnames, va="center", fontsize='xsmall') ax.set_yticks(range(numof_dicts)) ax.set_xticklabels(documentnames, rotation=320, va="top", ha="left", fontsize='xxsmall') ax.set_xticks(range(numof_dicts)) fig.subplots_adjust(left=0.10, right=0.90, top=0.90, bottom=0.24, hspace=0.3,wspace=0.9) fig.set_size_inches(13, 10.5) fig.savefig(sys.argv[1] + "_statistics.png") #p.show() 
From: Eric Firing <efiring@ha...>  20080731 17:45:00

felix@... wrote: > Hello, > > I would like to show a colorbar for my plot (see attachment) but I can't > figure out how it works. > In the examples on the website I only found the call to pylab.colorbar(), > which doesn't work with my subplots. My code is as follows (with the bar > graphpart snipped, for brevity). I also tried the ColorBar class and > assigning "cmap=cm.jet" but it didn't work. Could anybody give me a hint > please? I searched the tutorial, cookbook, api reference and google, but I > can't really find anything. > > Thanks, > Felix > > fig = p.figure() > fig.text(0.5, 0.94, main_title, fontsize="xlarge", ha="center") > > (...bar graph part snipped...) > > ax = fig.add_subplot(222) > ax.set_title('Euclidean Distance') > matrix = n.zeros([numof_dicts, numof_dicts]) > for i1, d1 in enumerate(dictionaries): > for i2, d2 in enumerate(dictionaries): > for k in d1.keys(): > if d2.has_key(k): > prob1 = (d1[k] / vectorlengths[i1]) > prob2 = (d2[k] / vectorlengths[i2]) > matrix[i1, i2] += prob1 * prob2 > ax.imshow(matrix, interpolation="nearest", cmap=p.cm.jet) im = ax.imshow(matrix, interpolation="nearest", cmap=p.cm.jet) p.colorbar(im, ax=ax) Try the above, possibly adding a "shrink" kwarg; if you don't like the axes splitting that colorbar does by default, then you can make an axes to taste, call it "cax", and instead of specifying the image axes as above, use p.colorbar(im, cax=cax). Eric > if documentnames != None: > ax.set_yticklabels(documentnames, va="center", fontsize='xsmall') > ax.set_yticks(range(numof_dicts)) > #p.colorbar() > > ax = fig.add_subplot(224) > ax.set_title('Kullback Leibler Distance') > ax.imshow(matrix, interpolation="nearest") > > if documentnames != None: > ax.set_yticklabels(documentnames, va="center", fontsize='xsmall') > ax.set_yticks(range(numof_dicts)) > ax.set_xticklabels(documentnames, rotation=320, va="top", ha="left", > fontsize='xxsmall') > ax.set_xticks(range(numof_dicts)) > > fig.subplots_adjust(left=0.10, right=0.90, top=0.90, bottom=0.24, > hspace=0.3,wspace=0.9) > fig.set_size_inches(13, 10.5) > fig.savefig(sys.argv[1] + "_statistics.png") > #p.show() 
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