Hi
I want to get a hold on a xi generated variable
however depending on the length of the variable the structure of the xi
generated name differs. Any help
here follows my details:
the program take just one argument `stub' which indicate which set of
variables to run with
xi: regress `stub'_fu dosis_F dosis_M i.dosis_gruppe|`stub'_bl, robust
di "* test of different baseline effekt in three treatment groups *"
qui test _IdosX`stub'_b_2= _IdosX`stub'_b_3, notest
test _IdosX`stub'_b_2= _IdosX`stub'_b_4, accum
I first worte and tejcked this program when `stub' was a three letter
combination and the the _Idos... worked fine
now I have a stub wiht five letters (extfat) which by xi gives variables
on the form _IdosXextfa_2 etc
(note that the last "t" in extfat is choped off so even _IdosX`stub'_2
dont exist)
My real problem is that I have 4 dosis group. I want to test wheter the
`stub'_bl effect is the same in group 2,3,4 (excluding 1 (placebo))
Hope someone might help
Best lars
PS I have tried to
xi: regress .... if dosis_group!=1 ...
but then `stub'_bl is excluded by stata
and
test _IdosX*
dont test the right hypothesis. Its test whether all effects are 0, not
equal)
............................................
: Lars Korsholm Ph.D., :
: Department of Statistics and Demography :
: University of Southern Denmark :
: Sdr. Boulevard 23A, 1. :
: DK-5000 Odense C :
: Phone +45 6550 3608 :
: Fax +45 6595 7766 :
: Mail [email protected] :
: Web http://www.isd.sdu.dk/~korsholm :
:..........................................:
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