sparseConstraints: DEPRECATED Generate sparse set of constraints.

Description

This function is deprecated. Please use function sparse_constraints from package lintools instead.

Usage

sparseConstraints(x, ...)
# S3 method for editmatrix
sparseConstraints(x, tol = 1e-08, ...)
# S3 method for matrix
sparseConstraints(x, b, neq = length(b), tol = 1e-08, ...)
# S3 method for data.frame
sparseConstraints(
  x,
  b,
  neq = length(b),
  base = min(x[, 2]),
  sorted = FALSE,
  ...
)
# S3 method for sparseConstraints
print(x, range = 1L:10L, ...)

Value

Object of class sparseConstraints (see details).

Arguments

x: R object to be translated to sparseConstraints format.
...: options to be passed to other methods
tol: Tolerance for testing where coefficients are zero
b: Constant vector
neq: The first new equations are interpreted as equality constraints, the rest as '<='
base: are the indices in x[,1:2] base 0 or base 1?
sorted: is x sorted by the first column?
range: integer vector stating which constraints to print

Details

The sparseConstraints objects holds the system \(\boldsymbol{Ax}\leq \boldsymbol{b}\) in column sparse format, outside of R's memory. In R, it is a reference object. In particular, it is meaningless to

Copy the object. You only will only generate a pointer to physically the same object.
Save the object. The physical object is destroyed when R closes, or when R's garbage collector cleans up a removed sparseConstraints object.