Icens: Macmat – R documentation

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Macmat

A function to compute the incidence matrix for an intersection graph.

Returns the Petrie matrix and Petrie pairs of an interval order given its list of maximal antichains. These can be obtained from Maclist.

Macmat(ml)

`ml`	A list containing the maximal cliques of the intersection graph of the data.

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A list containing two components.

`pmat`	The Petrie or clique matrix of the underlying interval order.
`ppairs`	The Petrie pairs for each observation. These indicate the first and last maximal clique occupied by the observation.

Alain Vandal and Robert Gentleman

Computational Methods for Censored Data using Intersection Graphs, R. Gentleman and A. Vandal, JCGS, 2000.

data(cosmesis)
   csub1 <- subset(cosmesis, subset=Trt==0, select=c(L,R))
   ml1 <- Maclist(csub1)
   mm1 <- Macmat(ml1)

NPMLE for Censored and Truncated Data

v1.62.0

Artistic-2.0

Authors

R. Gentleman and Alain Vandal

Initial release