StatsQpCDF

StatsQpCDF (q, nr, nt, df, side, sSizeWave)

The StatsQpCDF function returns the Q' cumulative distribution function associated with Dunnett's test.

Here nr is the number of groups (should be set to 1), nt is the number of treatments, df is the error degrees of freedom.

Set side =1 for upper-tail or side =2 for two-tailed CDF.

sSizeWave is an integer wave of nt rows specifying the number of samples in each treatment.

Details

StatsQpCDF is a modified Q distribution typically used with Dunnett's test, which compares the various means with the mean of the control group or treatment.

Reference

"Algorithm AS 251: Multivariate Normal Probability Integrals with Product Correlations Structure", C. W. Dunnett, Appl. Stat., 38 (1989) 564-579.

A short correction for the algorithm was published in: Appl. Stat., 42 (1993) 709.

See Also

Statistical Analysis, StatsDunnettTest, StatsInvQpCDF, StatsInvQCDF