Re: st: storage type problem

["Erik �. S�rensen" <sameos@mac.com>]

On fredag, feb 28, 2003, at 10:44 Canada/Eastern, Kostova Deliana 
(HXX1DAK) wrote:

> Suppose we want to calculate the product of -.1796042 and 4.752947, so 
> we
> type:
> display -.1796042^4.752947
> and we get
> -.00028563
this produces - ( .1796^0.475), not (-.179)^4.75 (whatever that would 
mean). The product (if you want it) would be written with a "*" not a 
"^".


> However, if we have variable X= -.1796042 and variable Y=4.752947, and 
> we
> type
> gen Z=X*Y, Stata will generate Z=. even though Z should be -.00028563.
I think you are mixing some things here. X*Y should work well (and be 
-.85), but X^Y (which you indicate above) will not work since negative 
numbers raised to non-integers will not work (for good mathematical 
reasons, this has nothing to do with the storage types).

Kind regards,
Erik
--
Erik �. S�rensen,  <http://www.geocities.com/erik_oiolf/>.
phd student (economics), Norwegian School of Economics.
currently visiting Queen's University, Kingston, Ontario.

*
*   For searches and help try:
*   http://www.stata.com/support/faqs/res/findit.html
*   http://www.stata.com/support/statalist/faq
*   http://www.ats.ucla.edu/stat/stata/