[Python] To plot variable number of plots with variable number of graphs from Pandas grouped...

I've been dealing with Python for the last few months and it still a little bit irritate me

But hope someone can explain how to plot some subplots from dataframe grouped by 2 columns using Matplotlib. Or give a link where I can find the information about this.

There is the example of dataframe:

name N coeff X1 Y1
0 F2 F2_1 1 0 0.56451
1 F2 F2_1 5 0 0.45005
2 F2 F2_2 1 25 0.53641
3 F2 F2_2 5 25 0.53641
4 F2 F2_3 1 55 0.45067
5 F2 F2_3 5 55 0.38828
6 F2 F2_4 1 85 0.33279
7 F2 F2_4 5 85 0.35315
8 F2 F2_5 1 95 0.2756
9 F2 F2_5 5 95 0.32571
10 F2 F2_6 1 120 0.159
11 F2 F2_6 5 120 0.27583
12 F2 F2_7 1 150 0.05648
13 F2 F2_7 5 150 0.21128
14 F3 F3_1 1 0 0.42757
15 F3 F3_1 5 0 0.32409
16 F3 F3_2 1 25 0.36033
17 F3 F3_2 5 25 0.2701
18 F3 F3_3 1 55 0.2161
19 F3 F3_3 5 55 0.17014
20 F3 F3_4 1 85 0.08191
21 F3 F3_4 5 85 0.10512
22 F3 F3_5 1 95 0.04468
23 F3 F3_5 5 95 0.09686
24 F3 F3_6 1 120 0.07025
25 F3 F3_6 5 120 0.033
26 F3 F3_7 1 150 0.10689
27 F3 F3_7 5 150 0.01334

I group it by columns Name and Coeff and need to plot sublots for every Name with graphs for every Coeff. In this case it has to be 2 subplots for "F2" and "F3" with 2 graphs for coeff 1 and 5.

There is no problem when I group it by 1 column. I don't understand how it works with grouping by some columns

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