wilkinsonp(p, r = 1, alpha = 0.05)
minimump(p, alpha = 0.05)
## S3 method for class 'wilkinsonp'
print(x, ...)
## S3 method for class 'minimump'
print(x, ...)
Arguments
p
A vector of p-values
r
Use the rth minimum p value
alpha
The significance level
x
An object of class ‘wilkinsonp’
or of class ‘minimump’
...
Other arguments to be passed through
Details
Wilkinson originally proposed his method in the context of
simultaneous statistical inference: the probability
of obtaining r or more significant statistics by
chance in a group of k.
The values are obtained from the Beta distribution, see
pbeta.
If alpha is greater than unity
it is assumed to be a percentage. Either values greater than 0.5 (assumed to
be confidence coefficient) or less than 0.5 are accepted.
The values of p should be such that
0<=p<=1 and a warning is issued if that is not
true.
An error results if possibly as a result of deletions
fewer than two studies remain.
minimump provides a wrapper for wilkinsonp
for the special case when r=1 and has its own
print method.
The plot method for class ‘metap’
calls schweder on the valid
p-values.
Inspection of the p-values is recommended as extreme values
in opposite directions do not cancel out.
See last example.
This may not be what you want.
Value
An object of class ‘wilkinsonp’
and ‘metap’ or of class ‘minimump’
and ‘metap’,
a list with entries
p
The p-value
pr
The rth minimum p value
r
The value of r
critp
The critical value at which the rth value
would have been significant for the chosen alpha
validp
The input vector with illegal values removed
Author(s)
Michael Dewey
References
Becker, B J. Combining significance levels. In
Cooper, H and Hedges, L V, editors
A handbook of research synthesis,
chapter 15, pages 215–230.
Russell Sage,
New York, 1994.
Birnbaum, A.
Combining independent tests of significance.
Journal of the American Statistical Association,
49:559–574, 1954.
Wilkinson, B.
A statistical consideration in psychological research.
Psychological Bulletin,
48:156–158, 1951.