CODEWITHSUNDEEP
pythonpandas
James Bond
James Bond

Reputation: 7913

in python pandas, how to save a 'grid chart'?

i am quite new to pandas plot facilities, in the doc, the following command is really handy:

myplot = rts.ret.hist(bins=50, by=rts.primary_mic)

however, the problems comes when i try to get a figure reference from the plot and save it:

myfigure = myplot.get_figure()
AttributeError: 'numpy.ndarray' object has no attribute 'get_figure'

what I understand is, rts.ret.hist(bins=50) returns a plot object, while rts.ret.hist(bins=50 returns an array object.

how should I save my figure in this case?

any clue?

thanks!

Upvotes: 3

Views: 3404

Answers (1)

unutbu
unutbu

Reputation: 879421

To save the figure, you could use plt.savefig:

import pandas as pd
import matplotlib.pyplot as plt

df = pd.DataFrame(
    [(1, 2), (1, 3), (1, 4), (2, 1), (2, 2)], columns=['col1', 'col2'])
df.hist(bins=4, by=df['col1'])
plt.savefig('/tmp/out.png')

enter image description here

Upvotes: 5

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