This is the table shown in Craig and Sendi paper showing zero and six month CD4 cells count in six brakets
data(craigsendi)
The format is: table [1:3, 1:3] 682 154 19 33 64 19 25 47 43 - attr(*, "dimnames")=List of 2 ..$ : chr [1:3] "0-49" "50-74" "75-UP" ..$ : chr [1:3] "0-49" "50-74" "75-UP"
Estimation of the transition matrix of a discrete time Markov chain, Bruce A. Craig and Peter P. Sendi, Health Economics 11, 2002.
Rows represent counts at the beginning, cols represent counts after six months.
see source
#> 0-49 50-74 75-UP #> [1,] 0.8343668 0.07659214 0.08904103