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Usage:

Step 1. Create object file myicm2.o from C program myicm2.c: note
        that since a random number generation function in the
        ranlib package (available from Statlib at CMU) is used, you may need 
        to install the package and modify the path in the makefile makeS2.
        Another simpler option probably is to use other random number
        generation functions available in your system and modify accordingly
        the impute() function in myicm.c.
        In Unix or SunOS:
> make -f makeS2

Step 2. In Splus:
> dyn.load("myicm2.o") 
> source("mi2test2.s")
> mi2test2("mydata.dat")
> source("mi2testABB2.s")
> mi2testABB2("mydata.dat")

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Input data format for mi2test2() or mi2testABB2():
   The input datafile for the above two SPlus functions contains
multiple lines: each line is an abservation in the form of
   Li  Ri  j
where the event is censored between Li and Ri (Li=0 for left-censoring;
Ri=99999 for right-censoring; Ri=Li+epsilon (i.e. a tiny number) for an
exact observation), and j=0 or 1 represents one of the two samples being
compared.

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Reference:
  Pan, W. A Two-Sample Test with Interval Censored Data via Multiple Imputation.
          Statistics in Medicine, 19, 1-11, 2000.

*************************
Wei Pan
weip@biostat.umn.edu
Feb 2000.