matplotlib/examples/errorbar_demo.py at transforms · tecki/matplotlib · GitHub

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#!/usr/bin/env python

from pylab import *

t = arange(0.1, 4, 0.1)

s = exp(-t)

e = 0.1*abs(randn(len(s)))

f = 0.1*abs(randn(len(s)))

g = 2*e

h = 2*f

figure()

errorbar(t, s, e, fmt='o') # vertical symmetric

figure()

errorbar(t, s, None, f, fmt='o') # horizontal symmetric

figure()

errorbar(t, s, e, f, fmt='o') # both symmetric

figure()

errorbar(t, s, [e,g], [f,h], fmt='--o') # both asymmetric

figure()

errorbar(t, s, [e,g], f, fmt='o', ecolor='g') # both mixed

figure()

errorbar(t, s, e, [f,h], fmt='o') # both mixed

figure()

errorbar(t, s, [e,g], fmt='o') # vertical asymmetric

figure()

errorbar(t, s, yerr=e, fmt='o') # named

figure()

errorbar(t, s, xerr=f, fmt='o') # named

xlabel('Distance (m)')

ylabel('Height (m)')

title('Mean and standard error as a function of distance')

figure()

ax = subplot(111)

ax.set_yscale('log')

errorbar(t, s+2, e, f, fmt='o') # both symmetric

#savefig('errorbar_demo')

show()