Wednesday, March 22, 2006

Re: st: functions for computing prob

Lei Xuan wrote:

> I am computing probabilities for t-test and z-test. > I want to know if the functions -tprob- and -normprob- are out-of-date > since no help files explain these functions. Are -ttail(n,t)- and -normal(z) > > right functions to compute probs?

see -help density functions- or -help functions-

Yes, the cumulative normal density function, normprob(), still works but is out of date, no longer documented, and has been replaced by normal(). Am not sure whether tprob() ever existed? - doesn't seem to work and is not documented in any case. ttail(n,t) is documented under help for functions.

- Gary

* * 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/


Tag:


Links to this post:

Create a Link



<< Home

This page is powered by Blogger. Isn't yours?