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SAS and SPLUS programs to perform Cox regression without convergence problems.
Heinze G, Ploner M. Heinze G, et al. Comput Methods Programs Biomed. 2002 Mar;67(3):217-23. doi: 10.1016/s0169-2607(01)00149-3. Comput Methods Programs Biomed. 2002. PMID: 11853948
Statistical software packages for Cox regression using the maximum likelihood method cannot appropriately deal with this problem. A new procedure to solve the problem has been proposed by G. Heinze, M. Schemper, A solution to the problem of monotone likelihood in Co …
Statistical software packages for Cox regression using the maximum likelihood method cannot appropriately deal with this problem. A new proc …
Exact log-rank tests for unequal follow-up.
Heinze G, Gnant M, Schemper M. Heinze G, et al. Biometrics. 2003 Dec;59(4):1151-7. doi: 10.1111/j.0006-341x.2003.00132.x. Biometrics. 2003. PMID: 14969496
381 results