matplotlib - Boxplot with pandas and groupby -


i have following dataset sample:

     0         1 0    0  0.040158 1    2  0.500642 2    0  0.005694 3    1  0.065052 4    0  0.034789 5    2  0.128495 6    1  0.088816 7    1  0.056725 8    0 -0.000193 9    2 -0.070252 10   2  0.138282 11   2  0.054638 12   2  0.039994 13   2  0.060659 14   0  0.038562

and need box , whisker plot, grouped column 0. have following:

plt.figure() grouped = df.groupby(0) grouped.boxplot(column=1) plt.savefig('plot.png')

but end 3 subplots. how can place 3 on 1 plot? thanks. enter image description here

i don't believe need use groupby.

df2 = df.pivot(columns=df.columns[0], index=df.index) df2.columns = df2.columns.droplevel()  >>> df2 0          0         1         2 0   0.040158       nan       nan 1        nan       nan  0.500642 2   0.005694       nan       nan 3        nan  0.065052       nan 4   0.034789       nan       nan 5        nan       nan  0.128495 6        nan  0.088816       nan 7        nan  0.056725       nan 8  -0.000193       nan       nan 9        nan       nan -0.070252 10       nan       nan  0.138282 11       nan       nan  0.054638 12       nan       nan  0.039994 13       nan       nan  0.060659 14  0.038562       nan       nan  df2.boxplot()

boxplot


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