split_byrow_bycol: Split matrix or dataframe into list

In hojsgaard/doBy: Groupwise Statistics, LSmeans, Linear Estimates, Utilities

Split matrix or dataframe into list

Description

Split matrix or dataframe into list by columns or by rows

Usage

split_bycol(x, idx = NULL, as.list = FALSE)

split_byrow(x, idx = NULL)

Arguments

x	Matrix or dataframe.
idx	Index to split by. If NULL, split by columns or rows.
as.list	If TRUE, return list of dataframes. If FALSE, return list of matrices.

Examples

x <- mtcars[1:3, 1:6]
x  |> split_bycol()
x  |> split_bycol(as.list=TRUE)
x  |> split_bycol(as.list=FALSE)
x  |> split_bycol(idx=c(1,1,1,2,2,3,3,3))
## x  |> split_bycol(idx=c(1,1,7,2,2,3,3,3)) ## Gives error

x <- mtcars[1:6, 1:6]
x  |> split_byrow()
x  |> split_byrow(idx=c(1,1,2,2))

m <- as.matrix(x)
u <- x |> split_byrow(idx=c(1,1,2,2))
y <- m |> split_byrow(idx=c(1,1,2,2))

hojsgaard/doBy documentation built on May 4, 2024, 5:20 a.m.