Coercion {spam} | R Documentation |
Coercion of spam
matrices to proper vector objects
## S4 method for signature 'spam' as.vector(x, mode = "any")
x |
spam object. |
mode |
character string naming an atomic mode or |
This coercion allows smooth transitions between different
matrix formats, see example below.
The Cholesky factors are first transformed to a spam
object.
If structurebased=TRUE
, the vector x@entries
.
Conversely, if structurebased=FALSE
, the result is identical to
one with as.vector(as.matrix(x))
.
Reinhard Furrer
x <- diag(2) ifelse( x, x, 1-x) ifelse( x, as.vector(x), 1-as.vector(x)) x <- diag.spam(2) options(spam.structurebased=FALSE) ifelse( x, as.vector(x), 1-as.vector(x)) options(spam.structurebased=TRUE) ifelse( x, as.vector(x), 1-as.vector(x))