pairwise_Schur_product: Compute Schur products (element-wise) of all pairwise...
In MESS: Miscellaneous Esoteric Statistical Scripts
pairwise_Schur_product R Documentation
Compute Schur products (element-wise) of all pairwise combinations of columns in matrix
Description
Fast computation of all pairwise element-wise column products of a matrix.
Usage
pairwise_Schur_product(x, self = FALSE)
Arguments
x
A matrix with dimensions r*c.
self
A logical that determines whether a column should also be multiplied by itself.
Details
Note that the output order of columns corresponds to the order of the columns in x. First column 1 is multiplied with each of the other columns, then column 2 with the remaining columns etc.
Value
A matrix with the same number of rows as x and a number of columns corresponding to c choose 2 (+ c if self is TRUE), where c is the number of columns of x.
Author(s)
Claus Ekstrom <claus@rprimer.dk>
Examples
X <- cbind(rep(1, 4), 1:4, 4:1)
pairwise_Schur_product(X)
pairwise_Schur_product(X, self=TRUE)
MESS documentation built on Aug. 21, 2023, 1:05 a.m.
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| pairwise_Schur_product | R Documentation |
Compute Schur products (element-wise) of all pairwise combinations of columns in matrix
Description
Fast computation of all pairwise element-wise column products of a matrix.
Usage
pairwise_Schur_product(x, self = FALSE)
Arguments
x |
A matrix with dimensions r*c. |
self |
A logical that determines whether a column should also be multiplied by itself. |
Details
Note that the output order of columns corresponds to the order of the columns in x. First column 1 is multiplied with each of the other columns, then column 2 with the remaining columns etc.
Value
A matrix with the same number of rows as x and a number of columns corresponding to c choose 2 (+ c if self is TRUE), where c is the number of columns of x.
Author(s)
Claus Ekstrom <claus@rprimer.dk>
Examples
X <- cbind(rep(1, 4), 1:4, 4:1)
pairwise_Schur_product(X)
pairwise_Schur_product(X, self=TRUE)
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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