spray {weyl}

Create spray objects

Description

Function spray() creates a sparse array; function weyl() coerces a spray object to a Weyl object.

Usage

spray(M,x,addrepeats=FALSE)

Arguments

M

An integer-valued matrix, the index of the weyl object

x

Numeric vector of coefficients

addrepeats

Boolean, specifying whether repeated rows are to be added

Details

The function is discussed and motivated in the spray package.

Value

Return a weyl or a Boolean

Author(s)

Robin K. S. Hankin

Examples

(W <- spray(matrix(1:36,6,6),1:6))
weyl(W)

as.weyl(15,d=3)