How to plot a histogram after grouping the same values?

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수환 김 2021-11-30

评论： Hiro Yoshino 2021-11-30

I have 2 rows.

id diff = 10 x 2 table

Var2 Var6

1 100

1 123

2 234

2 456

2 132

2 354

3 153

4 456

4 123

4 125

I want to draw a histogram by grouping 'Var2'.

According to the example above, there are 4 'Var2'. Therefore, there should be 4 histograms.

The code above is the code I used as an example.

Actually, in my data, there are 1 to 144 'Var2' and the number of 'Var6' is random. How do I plot a histogram for 144?

Hiro Yoshino 2021-11-30

This may help you out.

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