The
formula attributes of the
pdMat elements of
object
are extracted and returned as a list, in case
asList=TRUE
, or converted to a single one-sided formula when
asList=FALSE
. If the
pdMat elements do not have a
formula
attribute, a
NULL value is returned.
USAGE:
formula(object, asList)
REQUIRED ARGUMENTS:
object
an object inheriting from class
pdBlocked,
representing a positive definite block diagonal matrix.
OPTIONAL ARGUMENTS:
asList
an optional logical value. If
TRUE, a list with
the formulas for the individual block diagonal elements of
object is returned; else, if
FALSE, a one-sided formula
combining all individual formulas is returned. Defaults to
FALSE.
VALUE:
a list of one-sided formulas, or a single one-sided formula, or
NULL
.