Design flaw in -screeplot- or even a bug in -return-?

[daniel klein]

According to documentation, screeplot returns in a macro and matrix both under the same name r(ci). This obviously leads to problems accessing the returned results. Is this a design flaw in screeplot? Is this even intended behavior of return?

[Bjarte Aagnes]

Seem like a bug in return. Occurs if return matrix is last and the matrix name is different from return(name).

capt prog drop testit 
prog def testit, rclass 

    local ci ci
    matrix CI =  1,2 
    
    return local ci  `ci'
    return matrix ci CI  // matrix last with different matrix name
    
end    

testit
return list

macros:
                 r(ci) : "ci"
matrices:
                 r(ci) :  1 x 2

[daniel klein]

We are thinking in the same direction. I also noticed that you cannot obtain the same result when you return the macro after the matrix:

. capt prog drop testit 

. prog def testit, rclass 
  1. 
.     local ci ci
  2.     matrix CI =  1,2 
  3.     
.     return matrix ci CI 
  4.     return local ci  `ci'
  5.     
. end    

. 
. testit

. return list

macros:
                 r(ci) : "ci"

This inconsistent behavior, and the documentation, lead me to believe that return does not behave as intended here.