TestDesign (version 1.7.0)

constraints-operators: Basic operators for constraints objects

Description

Create a subset of a constraints object:

• constraints[i]

• subsetConstraints(constraints, 1:10)

Combine two constraints objects:

• c(constraints1, constraints2)

• combineConstraints(constraints1, constraints2)

Usage

subsetConstraints(x, i = NULL)
combineConstraints(x1, x2)
# S4 method for constraints,numeric
[(x, i, j, ..., drop = TRUE)
# S4 method for constraints
c(x, ...)

Arguments

x, x1, x2

a constraints object.

i, j

indices to use in subsetting.

...

not used, exists for compatibility.

drop

not used, exists for compatibility.

Examples

c1 <- constraints_science
c2 <- c1[1:10]
c3 <- c1[c(1, 11:36)] # keep constraint 1 for test length
c4 <- c(c2, c3)