Code needed: scatterplot with main regression line and other multiple ones

[Hussain Sulaimani]

Dear all,

I have panel data with observations consists of multiple groups.

I need to draw a scatter plot of DV versus IV with a line that represents the linear regression of entire observations, and also, regression lines of the groups (entities) with observation points shown.

Here is an example of what I precisely need.




Also, If you have a good and sufficient webpage, plot, or document that shows examples of various figures describing panel data and their codes, may you send it to me?
I know that manuals provide good guidance, but since I am new to Stata, I find it difficult to find what exactly need and follow instructions.

Thank you in advance,
Huss

[Scott Merryman]

Here is one way:

sysuse auto,clear
scatter price mpg if foreign == 0, mc(blue) ms(t)  /// 
    text(2700 27 "Domestic" , size(*.75) color(blue)  ) /// 
    || lfit price mpg  if fore == 0 ,  lc(blue)  /// 
    || scatter price mpg if fore == 1 , mc(green) ms(Oh) /// 
    text(5000 33 "Foreign"  , size(*.75) color(green) ) /// 
    ||lfit price mpg if fore == 1,  lc(green) /// 
    ||  lfit price mpg,  lc(black) lw(thick) /// 
    text(2200 35 "Regression"  , size(*.75) ) /// 
    ||, legend(off)

[Justin Niakamal]

Also, If you have a good and sufficient webpage, plot, or document that shows examples of various figures describing panel data and their codes, may you send it to me?

Here's a couple to start

https://www.princeton.edu/~otorres/Panel101.pdf
https://www.iuj.ac.jp/faculty/kucc62.../panel_iuj.pdf

[Hussain Sulaimani]

thank you Justin Niakamal and Justin Niakamal