Get Split Indices for a Multidesign Object — split_indices.multidesign • multidesign

Returns indices for splitting a multidesign object based on combinations of design variables, without actually splitting the data.

Usage

# S3 method for class 'multidesign'
split_indices(x, ..., collapse = FALSE)

Arguments

x: A multidesign object
...: Unquoted names of variables to split by
collapse: Logical; whether to collapse the resulting indices

Value

A tibble containing:

group variables: The splitting variables and their values
indices: List column of indices for each group
.splitvar: Combined string of grouping values

See also

split.multidesign

Other multidesign functions: multidesign(), reduce.multidesign(), split.multidesign(), subset.multidesign(), summarize_by.multidesign()

Examples

X <- matrix(rnorm(40*10), 40, 10)
Y <- data.frame(condition = rep(c("A","B"), each=20),
                block = rep(1:4, each=10))
mds <- multidesign(X, Y)
idx <- split_indices(mds, condition)