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pylab_examples example code: load_converter.pyΒΆ

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from __future__ import print_function
import numpy as np
import matplotlib.pyplot as plt
import matplotlib.cbook as cbook
import matplotlib.dates as mdates
from matplotlib.dates import bytespdate2num

datafile = cbook.get_sample_data('msft.csv', asfileobj=False)
print('loading', datafile)

dates, closes = np.loadtxt(datafile, delimiter=',',
                           converters={0: bytespdate2num('%d-%b-%y')},
                           skiprows=1, usecols=(0, 2), unpack=True)

fig = plt.figure()
ax = fig.add_subplot(111)
ax.plot_date(dates, closes, '-')

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