fsdaR (version 0.9-0)

fsmmmdrs.object: Description of fsmmmdrs.object Objects

Description

An object of class fsmmmdrs.object holds information about the result of a call to fsmmmdrs.

Value

The object itself is basically a list with the following components:

mmdrs: Minimum Mahalanobis distance, (n-init) by (nsimul+1) matrix which contains the monitoring of minimum Mahalanobis distance at each step of the forward search.

• 1st column = fwd search index (from init to n-1)

• 2nd column = minimum Mahalanobis distance for random start 1

• 3rd column ...

• nsimul+1 column minimum Mahalanobis distance for random start nsimul

BBrs: Units belonging to the subset at the steps specified by input option bsbsteps. If bsbsteps=0

BBrs has size n-by-(n-init+1)-by-nsimul. In this case BBrs[,,j] with j=1, 2, ..., nsimul has the following structure:

• 1st row = has number 1 in correspondence of the steps in which unit 1 is included inside subset and a missing value for the other steps

• ...

• (n-1)-th row = has number n-1 in correspondence of the steps in which unit n-1 is included inside subset and a missing value for the other steps

• n-th row = has the number n in correspondence of the steps in which unit n is included inside subset and a missing value for the other steps

If, on the other hand, bsbsteps is a vector which specifies the steps of the search in which it is necessary to store subset, BBrs has size n-by-length(bsbsteps)-by-nsimul. In other words, BBrs[,,j] with j=1, 2, ..., nsimul has the same structure as before, but now contains just length(bsbsteps) columns.

X: the data matrix X.

The object has class "fsmmmdrs".

Examples

if (FALSE) {
    data(hbk, package="robustbase")
    out <- fsmmmdrs(hbk[,1:3])
    class(out)
    summary(out)
}