st: Query: Adding yline()

[siyama@who.int]

Dear Stata-listers,

I need help with adding a yline to a graph - the value of the yline comes
from a variable "med1" as follows


egen med1=median(midobs1)

graph box midobs1 rmidobs1, over(site) yline(`med1') 

The graph command runs but does not show the required yline().

I would very much appreciate your suggestions.


Regards,

Amani


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