subsetMatrix: Matrix of Subset Indicators
In rje: Miscellaneous Useful Functions for Statistics
subsetMatrix R Documentation
Matrix of Subset Indicators
Description
Produces a matrix whose rows indicate what subsets of a set are included in
which other subsets.
Usage
subsetMatrix(n)
Arguments
n
integer containing the number of elements in the set.
Details
This function returns a matrix, with each row and column corresponding to a
subset of a hypothetical set of size n, ordered lexographically. The
entry in row i, column j corresponds to whether or not the
subset associated with i is a superset of that associated with
j.
A 1 or -1 indicates that i is a superset of j, with the sign
referring to the number of fewer elements in j. 0 indicates that
i is not a superset of j.
Value
An integer matrix of dimension 2^n by 2^n.
Note
The inverse of the output matrix is just abs(subsetMatrix(n)).
Author(s)
Robin Evans
See Also
combinations, powerSet, designMatrix.
Examples
subsetMatrix(3)
rje documentation built on Nov. 12, 2022, 9:06 a.m.
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| subsetMatrix | R Documentation |
Matrix of Subset Indicators
Description
Produces a matrix whose rows indicate what subsets of a set are included in which other subsets.
Usage
subsetMatrix(n)
Arguments
n |
integer containing the number of elements in the set. |
Details
This function returns a matrix, with each row and column corresponding to a
subset of a hypothetical set of size n, ordered lexographically. The
entry in row i, column j corresponds to whether or not the
subset associated with i is a superset of that associated with
j.
A 1 or -1 indicates that i is a superset of j, with the sign
referring to the number of fewer elements in j. 0 indicates that
i is not a superset of j.
Value
An integer matrix of dimension 2^n by 2^n.
Note
The inverse of the output matrix is just abs(subsetMatrix(n)).
Author(s)
Robin Evans
See Also
combinations, powerSet, designMatrix.
Examples
subsetMatrix(3)
R Package Documentation
Browse R Packages
We want your feedback!
Note that we can't provide technical support on individual packages. You should contact the package authors for that.
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