Dear Stata users
Using
. do "... \square.do"
. program define square
1. version 7.0
2. gettoken n 0 : 0, parse(" ,")
3. local nsquared1=`n'^2
4. local nsquared2=(`n'*`n')
5. di "`nsquared1' `nsquared2'"
6. end
.
end of do-file
I observe the following misbehaviour of the power operator "^2"
. square -2
-4 4
The example is for illustration -- the problem occurs in a real programme,
where the negative value n is a result of internal (and correct)
calculations. I am puzzled because I never observed this before.
Thanks in advance for your help.
Matthias
---
Matthias Greiner, Dr. med. vet.
Head of the International EpiLab
Danish Veterinary Institute
B�lowsvej 27, DK-1790 Copenhagen V
Tel +45 35 30 01 40
Fax +45 35 30 06 16
[email protected]
www.vetinst.dk/EpiLab
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