Matplotlib/BarCharts - SciPy wiki dump (original) (raw)

Use the bar function to make bar charts: http://matplotlib.sourceforge.net/matplotlib.pylab.html#-bar

Here's an example script that makes a bar char with error bars and labels centered under the bars.

import numpy.numarray as na

from pylab import *

labels = ["Baseline", "System"] data = [3.75 , 4.75] error = [0.3497 , 0.3108]

xlocations = na.array(range(len(data)))+0.5 width = 0.5 bar(xlocations, data, yerr=error, width=width) yticks(range(0, 8)) xticks(xlocations+ width/2, labels) xlim(0, xlocations[-1]+width*2) title("Average Ratings on the Training Set") gca().get_xaxis().tick_bottom() gca().get_yaxis().tick_left()

show()

SciPy: Cookbook/Matplotlib/BarCharts (last edited 2015-10-24 17:48:25 by anonymous)