.. note:: :class: sphx-glr-download-link-note Click :ref:`here ` to download the full example code .. rst-class:: sphx-glr-example-title .. _sphx_glr_gallery_misc_plotfile_demo.py: ============= Plotfile Demo ============= Example use of ``plotfile`` to plot data directly from a file. .. rst-class:: sphx-glr-horizontal * .. image:: /gallery/misc/images/sphx_glr_plotfile_demo_001.png :class: sphx-glr-multi-img * .. image:: /gallery/misc/images/sphx_glr_plotfile_demo_002.png :class: sphx-glr-multi-img * .. image:: /gallery/misc/images/sphx_glr_plotfile_demo_003.png :class: sphx-glr-multi-img * .. image:: /gallery/misc/images/sphx_glr_plotfile_demo_004.png :class: sphx-glr-multi-img * .. image:: /gallery/misc/images/sphx_glr_plotfile_demo_005.png :class: sphx-glr-multi-img * .. image:: /gallery/misc/images/sphx_glr_plotfile_demo_006.png :class: sphx-glr-multi-img * .. image:: /gallery/misc/images/sphx_glr_plotfile_demo_007.png :class: sphx-glr-multi-img * .. image:: /gallery/misc/images/sphx_glr_plotfile_demo_008.png :class: sphx-glr-multi-img .. code-block:: python 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.xlabel(r'$x$') plt.ylabel(r'$f(x) = x^2, x^3$') # test 8; use bar for volume plt.plotfile(fname, (0, 5, 6), plotfuncs={5: 'bar'}) plt.show() .. _sphx_glr_download_gallery_misc_plotfile_demo.py: .. only :: html .. container:: sphx-glr-footer :class: sphx-glr-footer-example .. container:: sphx-glr-download :download:`Download Python source code: plotfile_demo.py ` .. container:: sphx-glr-download :download:`Download Jupyter notebook: plotfile_demo.ipynb ` .. only:: html .. rst-class:: sphx-glr-signature Keywords: matplotlib code example, codex, python plot, pyplot `Gallery generated by Sphinx-Gallery `_