Suppressing Pandas dataframe plot output

Question

I am plotting a dataframe:

        ax = df.plot()
        fig = ax.get_figure()
        fig.savefig("{}/{}ts.png".format(IMGPATH, series[pfxlen:]))

It works fine. But, on the console, I get:

/usr/lib64/python2.7/site-packages/matplotlib/axes.py:2542: UserWarning: Attempting to set identical left==right results in singular transformations; automatically expanding. left=736249.924955, right=736249.924955 + 'left=%s, right=%s') % (left, right))

Basic searching hasn't showed me how to solve this error. So, I want to suppress these errors, since they garbage up the console. How can I do this?

Are you only plotting one datapoint or a series of data with the same x value? — wflynny
– wflynny, Commented Oct 13, 2016 at 18:52
@wflynny - this is a time series read from InfluxDB to the dataframe. It contains time and a measurement (float). — Ken - Enough about Monica
– Ken - Enough about Monica, Commented Oct 13, 2016 at 18:54
So I take it that you are plotting a single datapoint. Somewhere, either in your code or within df.plot(), you are calling ax.set_xlim(736249.924955, 736249.924955) and that's what matplotlib is complaining about. — wflynny
– wflynny, Commented Oct 13, 2016 at 19:06
@wflynny - Indeed. Since df.plot() is out of my control, I'd like to suppress the error messages to terminal, if possible. — Ken - Enough about Monica
– Ken - Enough about Monica, Commented Oct 13, 2016 at 19:11

rubik · Accepted Answer · 2016-10-13 19:12:31Z

3

Those aren't errors, but warnings. If you aren't concerned by those and just want to silence them, it's as simple as:

import warnings
warnings.filterwarnings('ignore')

Additionally, pandas and other libraries may trigger NumPY floating-point errors. If you encounter those, you have to silence them as well:

import numpy as np
np.seterr('ignore')

answered Oct 13, 2016 at 19:12

rubik

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