riskRegression (version 2022.03.22)

subsetIndex: Extract Specific Elements From An Object

Description

Extract specific elements from an object.

Usage

subsetIndex(object, index, default, ...)
# S3 method for default
subsetIndex(object, index, default, ...)
# S3 method for matrix
subsetIndex(object, index, default, col = TRUE, ...)

Arguments

object

A vector or a matrix.

index

index of the elements to be extracted. 0 indicates that the column should be set to the default value. NA indicates that the column should be set to NA.

default

the default value.

...

Only used by the generic method.

col

If object is a matrix, TRUE lead to extract the columns and FALSE the rows.

Examples

M <- matrix(rnorm(50),5,10)
subsetIndex(M, index = c(0,0,1), default = 0)
subsetIndex(M, index = c(0,2,3,NA), default = 0)
subsetIndex(M, index = c(0,NA,2,3,NA), default = 0)

C <- 1:10
subsetIndex(C, index = c(0,0,1,5,NA), default = 0)