📅  最后修改于: 2022-03-11 14:45:56.070000             🧑  作者: Mango
def plot_null_matrix(df, figsize=(18,15)):
# initiate the figure
plt.figure(figsize=figsize)
# create a boolean dataframe based on whether values are null
df_null = df.isnull()
# create a heatmap of the boolean dataframe
sns.heatmap(~df_null, cbar=False, yticklabels=False)
plt.show()