one graph for 4 variables - Basic plots

[chokri zehri]

I seek to represent graphically four variables on the same graph (to compare their evolution). How do it please? A small problem is that it does not have the same scale of measurement.
Y: variable values X: Year

[Dave Airey]

I think you either need to put your variables on the same scale and then type something like scatter 'a b c d year', or make four separate graphs and combine them into one with the graph combine command.

[chokri zehri]

I can't change the scale of variables. The second solution is good I think, but, how I can write the graph combine command. Our variables are noted "DEBT, KAOPEN, F_Dev and F_Open". Thanks

[Nick Cox]

This may help:

https://www.statalist.org/forums/for...ailable-on-ssc

No combining needed. It isn't even done within the program. Different scales the default!

[chokri zehri]

Thank you Sir Nick, I try it.

[Dave Airey]

Neat. Nick, you do it with a by construction?

[Nick Cox]

david Airey Yes; the program is based on temporary restructuring of the data and calling up a by() option.