FNONCT: Compute the noncentrality parameter of an F distribution

In rpsychi: Statistics for psychiatric research

Description

This is an internal function. FNONCT compute the value of the noncentrality parameter of an F distribution.

Usage

FNONCT(x, df1, df2, prob, 
        interval = c(0, 10000), my.tol = 1e-06)

Arguments

x	a numeric contains the F value
df1	a numeric contains the numerator degrees of freedom parameter
df2	a numeric contains the denominator degrees of freedom parameter
prob	a numeric contains the probability
interval	a numeric vector contains the end-points of the interval to be searched
my.tol	the desired accuracy

Value

Return a numeric contains the noncentrality parameter.

Author(s)

Yasuyuki Okumura
Department of Social Psychiatry,
National Institute of Mental Health,
National Center of Neurology and Psychiatry
[e-mail]

References

Kline RB (2004) Beyond significance testing: Reforming data analysis methods in behavioral research. Washington: American Psychological Association.

Examples

##Kline (2004) Table 4.7
FNONCT(9.61, 1, 58, .975)
FNONCT(9.61, 1, 58, .025)

Example output

Loading required package: gtools
[1] 1.097944
[1] 26.28444

rpsychi documentation built on May 1, 2019, 10:10 p.m.