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The origin of the problem ： I want to use seanborn Of kdeplot drawing ,kdeplot The first parameter needs to be a one-dimensional array .
What I first introduced was Dataframe Class variables , This Dataframe Class variables are used Dataframe[[' Name ']] obtain , And then they report iloc giving 'IndexError: single positional indexer is out-of-bounds' This mistake .
Then I go through pandas.Dataframe.values The value of this column is converted to a numpy Two dimensional array of , Almost like this , as follows ：
Then go ahead and deal with df.values.flatten() Into an array , Grow into the following ：
This is the time to meet my requirements .
Add up ：
You can also use the variable name directly ds= Dataframe[' Name ’] Get a column data without column name directly , This is the time ds For one Series object
