| SparseplusLowRank-class {softImpute} | R Documentation |
Class "SparseplusLowRank"
Description
A structured matrix made up of a sparse part plus a low-rank part, all which can be stored and operated on efficiently.
Objects from the Class
Objects can be created by calls of the form
new("SparseplusLowRank", ...)
or by a call to splr
Slots
x:Object of class
"sparseMatrix"a:Object of class
"matrix"b:Object of class
"matrix"
Methods
- %*%
signature(x = "ANY", y = "SparseplusLowRank"): ...- %*%
signature(x = "SparseplusLowRank", y = "ANY"): ...- %*%
signature(x = "Matrix", y = "SparseplusLowRank"): ...- %*%
signature(x = "SparseplusLowRank", y = "Matrix"): ...- as.matrix
signature(x = "SparseplusLowRank"): ...- colMeans
signature(x = "SparseplusLowRank"): ...- colSums
signature(x = "SparseplusLowRank"): ...- dim
signature(x = "SparseplusLowRank"): ...- norm
signature(x = "SparseplusLowRank", type = "character"): ...- rowMeans
signature(x = "SparseplusLowRank"): ...- rowSums
signature(x = "SparseplusLowRank"): ...- svd.als
signature(x = "SparseplusLowRank"): ...
Author(s)
Trevor Hastie and Rahul Mazumder
See Also
softImpute,splr
Examples
showClass("SparseplusLowRank")
x=matrix(sample(c(3,0),15,replace=TRUE),5,3)
x=as(x,"sparseMatrix")
a=matrix(rnorm(10),5,2)
b=matrix(rnorm(6),3,2)
new("SparseplusLowRank",x=x,a=a,b=b)
splr(x,a,b)