desparsify {kerntools} | R Documentation |
This function deletes those columns and/or rows in a matrix/data.frame that only contain 0s.
Description
This function deletes those columns and/or rows in a matrix/data.frame that only contain 0s.
Usage
desparsify(X, dim = 2)
Arguments
X |
Numeric matrix or data.frame of any size. |
dim |
A numeric vector. 1 indicates that the function should be applied to rows, 2 to columns, c(1, 2) indicates rows and columns. (Defaults: 2). |
Value
X with less rows or columns. (Class: the same than X).
Examples
dat <- matrix(rnorm(150),ncol=50,nrow=30)
dat[c(2,6,12),] <- 0
dat[,c(30,40,50)] <- 0
dim(desparsify(dat))
dim(desparsify(dat,dim=c(1,2)))
[Package kerntools version 1.0.2 Index]