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multicomp.reverse {HH}

Force all comparisons in a "multicomp" object to have the same sign.
Package: 
HH
Version: 
2.3-37

Description

Force all comparisons in a "multicomp" object to have the same sign. If the contrast "A-B" has a negative estimate, reverse it show the contrast "B-A" with a positive estimate.

Usage

multicomp.reverse(y, estimate.sign = 1, ...)

Arguments

y
"multicomp" object
estimate.sign
If estimate.sign==1, reverse the negatives. If estimate.sign==-1, reverse the positives. Both the names of the comparisons and the numerical values are reversed. If estimate.sign==0, return the argument.
...
other arguments not used.

Values

The result is a "multicomp" object containing the same contrasts as the argument but with the sign of the contrasts changed as needed.

References

Heiberger, Richard M. and Holland, Burt (2004b). Statistical Analysis and Data Display: An Intermediate Course with Examples in S-Plus, R, and SAS. Springer Texts in Statistics. Springer. ISBN 0-387-40270-5.

Heiberger, R.~M. and Holland, B. (2006). "Mean--mean multiple comparison displays for families of linear contrasts." Journal of Computational and Graphical Statistics, 15:937--955.

Note

S-Plus use the multicomp functions and R uses the multcomp package.

See Also

MMC, multicomp.order

Examples

## see example in multicomp.order

Author(s)

Richard M. Heiberger

Documentation reproduced from package HH, version 2.3-37. License: GPL (>= 2)