How can I draw a scatter plot with subgroup of different markers in Stata?

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Hey everyone,
I met some difficulty in a scatter plot by STATA.


What command can be applied to get a scatter plot by subgroup with two different markers in a single graph?

For example, these two markers indicate subgroup 1 and 2.

How can I acchieve this in Stata?
What command can be used?
Many thanks.

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关键词：Different subgroup Scatter marker DIFFER difficulty different everyone indicate command

Well, the easiest way is to create a dummy variable just for the subgroup (ie subgroup 1). Then with the help of the twoway scatter command you can have a graph like that in the picture.

          gen dummy=1 if subgroup==1
          replace dummy=0 if subgroup==2


After that
twoway  (scatter var1 var2 if dummy==1 , sort mcolor(blue) msize(small) msymbol(X) ) /*       
  */(scatter var1 var2 if dummy==0 , sort mcolor(red) msize(small) msymbol(triangle_hollow))

Try experimenting with the mcolor msize and msymbol values inside the brackets (i think that for your graphs msymbol has to be circle and circle_hollow respectively.

Hope this helps

skatakmh 发表于 2012-5-13 06:36
Well, the easiest way is to create a dummy variable just for the subgroup (ie subgroup 1). Then with ...

It works!
Many thanks.
Best regards.