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Seaborn Pairplot不显示KDE

[英]Seaborn pairplot not showing KDE

原文 2017-01-20 04:07:51 7 2 python/ matplotlib/ seaborn

After upgrading to matplotlib 2.0 I have a hard time getting seaborn to plot a pairplot. 升级到matplotlib 2.0后，我很难下定决心绘制对图。 For example... 例如...

sns.pairplot(df.dropna(), diag_kind='kde') returns the following error TypeError: slice indices must be integers or None or have an __index__ method . sns.pairplot(df.dropna(), diag_kind='kde')返回以下错误TypeError: slice indices must be integers or None or have an __index__ method 。 My data doesn't have any Nans in it. 我的数据中没有任何Nan。 Infact, removing the kde option allows the function to run. 实际上，删除kde选项将允许该函数运行。

Any idea what is happening? 知道发生了什么吗？

2 个解决方案

Check the data type of the relevant variables. 检查相关变量的数据类型。 The error indicates that at least one of them is not an integer. 该错误表明它们中至少有一个不是整数。 It might be a float. 可能是浮点数。 If so, you'll need to recast the variable as an integer. 如果是这样，则需要将变量重铸为整数。 Be careful if you have some very long numbers as these can round down when converting to an integer - see this question here for more information. 如果您有一些很长的数字，请当心，因为这些数字在转换为整数时会舍入-有关更多信息，请参见此处的问题。

(Note, this works for me in Python 2.7, not sure if 3.+ is different). （请注意，这在Python 2.7中对我有效，不确定3. +是否不同）。

Looks like the problem was with statsmodels (which seaborn uses to do KDE). 看起来问题出在statsmodels（seaborn用于做KDE）。 I reinstalled statsmodels and that cleared up the problem. 我重新安装了statsmodels，这解决了问题。