On Apr 21, 2009, at 5:12 AM, John Sorkin wrote:
Can anyone recommend a package that can be used to randomize
subjects? I am looking for a generalized package, or several
packages that can accomplish
unrestricted randomization (i.e. simple random assignment)
restricted randomization including stratified randomization, blocked
randomization, and adaptive randomization.
Thanks,
John
John,
Take a look at the 'blockrand' and 'crossdes' packages on CRAN.
If you need something beyond those, it is not overly difficult to
write functions in R to do this.
HTH,
Marc Schwartz
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