dot-splitIndex: Split a vector into groups

In pmbrophy/mzDataTable: Import and convert raw mass spectrometry data formats

Description

Split a vector into groups

Usage

.splitIndex(index, nGroups, randomize = FALSE)

Arguments

index	the vector of index values to be split into groups
nGroups	number of groups to be generated
randomize	should the groups contain a random or ordered sampling from the index vector

Value

returns a list containing 'groups' and 'groupIndex' both of which are lists of length nGroups

Examples

## Not run: 
index <- c(c(1:10), c(30:40))
groupedIndex <- .splitIndex(nGroups = 3, index = index, randomize = TRUE)

groups <- unlist(groupedIndex$groups)
groups_i <- unlist(groupedIndex$groupIndex)

all(index %in% groups)

#Reorder the radomized groups by groups_i
groups_reorder <- vector(mode = "numeric", length = length(groups))
groups_reorder[groups_i] <- groups
groups_reorder
## End(Not run)

pmbrophy/mzDataTable documentation built on June 6, 2020, 7:43 a.m.