<https://lh3.googleusercontent.com/-5GfOebutCfE/WDBr8AaSxVI/AAAAAAAAAJY/1mw_sLtVIKg3J4Zl76o1Jy-TQmNDBHPQwCLcB/s1600/generate-histogram3d-v1.png> <https://lh3.googleusercontent.com/-pOdQ2JXJYgE/WDBtFvJWOSI/AAAAAAAAAJk/MFe5OpGHuTMnrkUHktVpV0gv1I3zdHbUACLcB/s1600/generate-histogram3d-v2.png>
Hello, I'm working with code that creates 2D histograms (3-dimensional plots) from data in 2D tuples of the form (gap1, gap2). I have been using Mathematica's Histogram3D function (https://reference.wolfram.com/language/ref/Histogram3D.html) to perform the plotting after writing my tuple data to file. The resulting plots look approximately like the previous images, where the second image is the corresponding 2D density plot of the pair data. So far I have been able to replicate the density plot with matplotlib using the following code: import numpy as np import matplotlib as mpl import matplotlib.pyplot as plt from sage.all import * from sage.plot.histogram import Histogram def Histogram3D(xypoints, numbins): xpoints = map(lambda (x, y): x, xypoints) ypoints = map(lambda (x, y): y, xypoints) minx, maxx, miny, maxy = min(xpoints), max(xpoints), \ min(ypoints), max(ypoints) xedges = np.arange(minx, maxx, (maxx - minx) / float(numbins)) yedges = np.arange(miny, maxy, (maxy - miny) / float(numbins)) H, xedges, yedges = np.histogram2d(ypoints, xpoints, bins = (xedges, yedges)) fig = plt.figure(figsize=(7, 3)) ax = fig.add_subplot(132) ax.set_title('pcolormesh: exact bin edges') X, Y = np.meshgrid(xedges, yedges) ax.pcolormesh(X, Y, H) ax.set_aspect('equal') plt.savefig('./output/foo.png', bbox_inches='tight') ## def Is there an existing routine in Sage that will create the 3d-plotted data like the first image with Mathematica's Histogram3D plot in the above images? If not, please let me know if there is any interest in adding this functionality to Sage's Histogram code. I would like to write this extension if there's not already a function like it available in Sage. Sincerely, Maxie -- You received this message because you are subscribed to the Google Groups "sage-devel" group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-devel+unsubscr...@googlegroups.com. To post to this group, send email to sage-devel@googlegroups.com. Visit this group at https://groups.google.com/group/sage-devel. For more options, visit https://groups.google.com/d/optout.
