R: Specify a Block Monotonic Shape-Restriction in a CSVY Formula

block.Ord {csurvey}

R Documentation

Specify a Block Monotonic Shape-Restriction in a CSVY Formula

Description

A symbolic routine to define that a vector of domain means follows a monotonic ordering in a predictor in a formula argument to csvy. This is the unsmoothed version.

Usage

  block.Ord(x, order = NULL, numknots = 0, knots = 0, space = "E")

Arguments

`x`	A numeric predictor which has the same length as the response vector.
`order`	A `1 \times M` vector defining the order of domains when the shape constraint is block ordering.
`numknots`	The number of knots used to smoothly constrain a predictor. The value should be `0` for a shape-restricted predictor without smoothing. The default value is `0`.
`knots`	The knots used to smoothly constrain a predictor. The value should be `0` for a shape-restricted predictor without smoothing. The default value is `0`.
`space`	A character specifying the method to create knots. It will not be used for a shape-restricted predictor without smoothing. The default value is "E".

Value

The vector x with five attributes, i.e., name: the name of x; shape: 9("block ordering"); numknots: the numknots argument in "block.Ord"; knots: the knots argument in "block.Ord"; space: the space argument in "block.Ord".

Author(s)