balance.pairs: Balance the Pairs of Stimuli
In zief0002/ross: Ross Ordering
Description
Usage
Arguments
Details
Value
Author(s)
References
See Also
Examples
Description
This function balances the pairs of stimuli so that each stimulus appears equally often as the first or second member of a pair.
Usage
1
balance.pairs(matrix.x, matrix.y, numstim)
Arguments
matrix.x
A matrix where the elements correspond to the ordinal position of the stimulus presented first in each pair
matrix.y
A matrix where the elements correspond to the ordinal position of the stimulus presented second in each pair
numstim
The number of stimuli
Details
This function is called in the ross.ordering, matrix.sampling and incomplete.design functions.
Value
A data frame of the ordinal positions for the balanced pairs of stimuli.
Author(s)
Andrew Zieffler zief002@umn.edu, Stacy Karl karlx028@umn.edu, and Julio Cabrera cabre031@umn.edu
References
Davison, M. L. Zieffler, A. Cabrera, J. Karl, S. R. and Cohen, H. S. in press Automated Assembly of Optimally Spaced and Balanced Paired Comparisons: Controlling Order Effects. Behavioral Research Methods. DOI 10.3758/s13428-011-0170-0
Cohen, H.S. and Davison, M.L. 1973 Jiffy-Scale: A FORTRAN IV Program for Generating Ross-Ordered Paired Comparisons. Behavioral Science, 18, 1, 76.
Ross, R.T. 1934 Optimimum Orders for the Presentation of Pairs in the Method of Paired Comparisons. Journal of Educational Psychology, 25, 5, 375–382.
See Also
Examples
1
balance.pairs(matrix.x(9), matrix.y(9), 9)
zief0002/ross documentation built on May 7, 2019, 3:17 p.m.
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Description Usage Arguments Details Value Author(s) References See Also Examples
Description
This function balances the pairs of stimuli so that each stimulus appears equally often as the first or second member of a pair.
Usage
1 | balance.pairs(matrix.x, matrix.y, numstim)
|
Arguments
matrix.x |
A matrix where the elements correspond to the ordinal position of the stimulus presented first in each pair |
matrix.y |
A matrix where the elements correspond to the ordinal position of the stimulus presented second in each pair |
numstim |
The number of stimuli |
Details
This function is called in the ross.ordering, matrix.sampling and incomplete.design functions.
Value
A data frame of the ordinal positions for the balanced pairs of stimuli.
Author(s)
Andrew Zieffler zief002@umn.edu, Stacy Karl karlx028@umn.edu, and Julio Cabrera cabre031@umn.edu
References
Davison, M. L. Zieffler, A. Cabrera, J. Karl, S. R. and Cohen, H. S. in press Automated Assembly of Optimally Spaced and Balanced Paired Comparisons: Controlling Order Effects. Behavioral Research Methods. DOI 10.3758/s13428-011-0170-0
Cohen, H.S. and Davison, M.L. 1973 Jiffy-Scale: A FORTRAN IV Program for Generating Ross-Ordered Paired Comparisons. Behavioral Science, 18, 1, 76.
Ross, R.T. 1934 Optimimum Orders for the Presentation of Pairs in the Method of Paired Comparisons. Journal of Educational Psychology, 25, 5, 375–382.
See Also
Examples
1 | balance.pairs(matrix.x(9), matrix.y(9), 9)
|
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