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I don't think there is a sage command for that, but you can use matplotlib(present by default in sage) to make these kind of plots. I have pasted a sample code from this site. If you run the code below you will see 3D bar plot.

http://pythonprogramming.net/3d-bar-charts-python-matplotlib/

from mpl_toolkits.mplot3d import Axes3D
import matplotlib.pyplot as plt
import numpy as np

fig = plt.figure()