Alan,
what is wron is the syntax of uniform function. uniform() can be used
under Stata, but under mata you should use uniform(r,c) (r: row
dimension c: col dimension). for your exemple you can write
A=1..5
U=uniform(rows(A),cols(A)) :* A
2007/11/1, Feiveson, Alan H. (JSC-SK311) <[email protected]>:
> Hi -I've been frustrated by trying to simply generate random uniforms
> using uniform()in Mata: Here's what happens:
>
> . mata
> ------------------------------------------------- mata (type end to
> exit) ---------------------------
> : A = 1..5
>
> : E=exp(A)
>
> : A
> 1 2 3 4 5
> +---------------------+
> 1 | 1 2 3 4 5 |
> +---------------------+
>
> : E
> 1 2 3 4
> 5
>
> +-----------------------------------------------------------------------
> +
> 1 | 2.718281828 7.389056099 20.08553692 54.59815003
> 148.4131591 |
>
> +-----------------------------------------------------------------------
> +
>
> : F=normal(A)
>
> : F
> 1 2 3 4
> 5
>
> +-----------------------------------------------------------------------
> +
> 1 | .8413447461 .9772498681 .998650102 .9999683288
> .9999997133 |
>
> +-----------------------------------------------------------------------
> +
>
> : U=uniform()
> wrong number of arguments for uniform()
> r(3000);
>
> : U=uniform():*1
> wrong number of arguments for uniform()
> r(3000);
>
> : U=uniform():*A
> wrong number of arguments for uniform()
> r(3000);
>
> What am I doing wrong? Also, nowhere in the Mata manuals can I find
> anything about what arguments the statistical functions take. After
> going to interactive "help', I finally found out they were the same as
> the Stata function arguments. So if that's true, why doesn't "uniform()"
> work?
>
> Al Feiveson
>
> *
> * 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/
>
--
AbdelRahmen El Lahga
*
* 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/
