multicomp.reverse {HH} | R Documentation |
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.
multicomp.reverse(y, estimate.sign = 1, ...)
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. |
The result is a "multicomp"
object containing the same contrasts
as the argument but with the sign of the contrasts changed as needed.
S-Plus use the multicomp
functions and R uses the multcomp
package.
Richard M. Heiberger <rmh@temple.edu>
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.
## see example in multicomp.order