Benny Baysinger Benny Baysinger - 4 months ago 72
Python Question

seaborn distplot loop lazy evaluation

I am using ipython notebook and trying to use the following function to export seaborn distplots. It works just fine if I call the function and execute with only one variable at a time. If I call the function in a loop, it continues to build on top of the distplot from the previous function call.

My desired output would be for the function to output a new displot every time it is called in a loop. Is there a way to force evaluation or a new distplot?

def graph_extraversion (x):


file_name = "extraversion_" + str(x) + ".png"
sns_plot = sns.distplot(Personalities[Personalities.labels1 ==x].extraversion)
sns_plot = sns.distplot(df.extraversion)
fig = sns_plot.get_figure()
fig.savefig(file_name)
new_stat = Personalities[Personalities.labels1 ==x].extraversion.describe()
extraversion_drift = extraversion_median - new_stat[1]
drift = extraversion_drift / extraversion_std
if (drift >= 1) | (drift <= -1):
return "1 std deviation or more"
else:
return "Less than one std deviation"


This what is what the distplot looks like after one call

enter image description here

This is two calls later in a loop.

enter image description here

Again this works just fine with a single call and execution but when looped it keeps building.

Answer

So this has to do with matplotlib and closing figures.

additional code required is an import:

import matplotlib.pyplot as plt

Then at the end of the func:

plt.close(fig)

This should help with any looping with both seaborn and matplotlib

Comments