Build Sequential Binary Partition

Build a default sequential binary partition for complr object. The default sequential binary partition is a pivot balance that allows the effect of this first balance coordinate to be interpreted as the change in the prediction for the dependent variable when that given part increases while all remaining parts decrease by a common proportion.

Usage

build.sbp(parts)

Arguments

parts

A character vector specifying the names of compositional variables to be used.

Value

A matrix sequential binary partition.

Examples

sbp1 <- build.sbp(parts = c("TST", "WAKE", "MVPA", "LPA", "SB"))
print(sbp1)
#>      TST WAKE MVPA LPA SB
#> [1,]   1   -1   -1  -1 -1
#> [2,]   0    1   -1  -1 -1
#> [3,]   0    0    1  -1 -1
#> [4,]   0    0    0   1 -1

sbp2 <- build.sbp(c("WAKE", "MVPA", "LPA", "SB"))
print(sbp2)
#>      WAKE MVPA LPA SB
#> [1,]    1   -1  -1 -1
#> [2,]    0    1  -1 -1
#> [3,]    0    0   1 -1