具有常量值数组的Python Seaborn调度

Question

I have a problem using seaborn.distplot with an array of constant values.

import seaborn as sns
sns.distplot([1] * 10)

Returns:

ValueError: cannot convert float NaN to integer

-- EDIT: new version of Seaborn (0.6.0) solves the problem

The previous problem happened with seaborn version 0.5.1. Solved with version 0.6.0.

Answer 1

Don't use the same value for all items in the data. Because there is no variance between the lower and upper values in the range (or the 1st and 3rd quartiles depending on how the bins are calculated), the bins become undefined ie nan . This can not be converted to an integer and is the cause of the exception that you see. Possibly that is a bug in seaborn - at least it could be better handled.

You might have better success with this:

import seaborn as sns
sns.distplot([1,2] * 10)