The formula attributes of the pdMat elements of
x 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
## S3 method for class 'pdBlocked':
formula(x, asList, \dots)
Arguments
Value
a list of one-sided formulas, or a single one-sided formula, or
NULL.