matlist {OSDR} | R Documentation |
From list of feasible assignments to cost matrix.
Description
Transforms the list of suitable applicants into the equivalent cost matrix.
Usage
matlist(x)
Arguments
x |
An ordered list of applicants for a set of jobs. The |
Details
In statistical matching problems the input is usually the cost matrix while in assignment problems is the list of assignable elements. Functions matlist
and listmat
go back and forth these two representations of the input.
Value
The cost matrix of the assignment problem. The (i,j)
entry of the matrix is zero if the j^{th}
applicant is assignable to the i^{th}
job and \infty
otherwise. Equivalently, the (i,j)
entry of the matrix is zero if the j^{th}
control unit can be matched to the i^{th}
treated unit and \infty
otherwise.
Author(s)
Massimo Cannas <massimo.cannas@unica.it>
See Also
See also the reverse function listmat
.
Examples
# a list of feasible applicants for five jobs
M1<-c("A","B","C")
M2<-c("A","C")
M3<-c("B")
M4<-c("A","C")
M5<-c("A","D")
M <-list(M1,M2,M3,M4,M5)
M
# the corresponding cost matrix
m<-listmat(M)
# back to the list
l<-matlist(m)