You are reading an old version of the documentation (v1.5.1). For the latest version see

We're updating the default styles for Matplotlib 2.0

Learn what to expect in the new updates



This Page

pylab_examples example code: plotfile_demo.pyΒΆ

(Source code)

import matplotlib.pyplot as plt
import numpy as np

import matplotlib.cbook as cbook

fname = cbook.get_sample_data('msft.csv', asfileobj=False)
fname2 = cbook.get_sample_data('data_x_x2_x3.csv', asfileobj=False)

# test 1; use ints
plt.plotfile(fname, (0, 5, 6))

# test 2; use names
plt.plotfile(fname, ('date', 'volume', 'adj_close'))

# test 3; use semilogy for volume
plt.plotfile(fname, ('date', 'volume', 'adj_close'),
             plotfuncs={'volume': 'semilogy'})

# test 4; use semilogy for volume
plt.plotfile(fname, (0, 5, 6), plotfuncs={5: 'semilogy'})

# test 5; single subplot
plt.plotfile(fname, ('date', 'open', 'high', 'low', 'close'), subplots=False)

# test 6; labeling, if no names in csv-file
plt.plotfile(fname2, cols=(0, 1, 2), delimiter=' ',
             names=['$x$', '$f(x)=x^2$', '$f(x)=x^3$'])

# test 7; more than one file per figure--illustrated here with a single file
plt.plotfile(fname2, cols=(0, 1), delimiter=' ')
plt.plotfile(fname2, cols=(0, 2), newfig=False,
             delimiter=' ')  # use current figure
plt.ylabel(r'$f(x) = x^2, x^3$')

# test 8; use bar for volume
plt.plotfile(fname, (0, 5, 6), plotfuncs={5: 'bar'})

Keywords: python, matplotlib, pylab, example, codex (see Search examples)