StatsDirect calculates quantiles (e.g. Student t on nu degrees of freedom)
and areas (P) for a range of probability distributions.
You can download StatsDirect (free to use for 21 days) from
http://www.statsdirect.com or http://www.camcode.com
This is the next generation of software from Arcus R&D. The distribution
functions are calculated to a higher precision than in previous Arcus
software.
The on-line help in StatsDirect gives the definitions and academic
references for the calculations. It also gives more basic information on
probability theory and its applications.
StatsDirect calculates Student's t via the beta function to around 14
decimal places of accuracy.
Iain Buchan
-----Original Message-----
>From Martin Bland:
There are several programs which will give you P values for
any t and
any degrees of freed, e.g. Iain Buchan's ARCUS.
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