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Computations related to group sequential boundaries. Includes calculation of bounds using the LanDeMets alpha spending function approach.
Package details 


Author  Charlie Casper and Oscar A. Perez. Based on FORTRAN program ld98. 
Date of publication  20140119 09:07:21 
Maintainer  Charlie Casper <charlie.casper@hsc.utah.edu> 
License  GPL (>= 2) 
Version  1.11 
Package repository  View on CRAN 
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