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  "Description": "Various functions for discrete time survival analysis and\nlongitudinal analysis. SIMEX method for correcting for bias for\nerrors-in-variables in a mixed effects model. Asymptotic mean\nand variance of different proportional hazards test statistics\nusing different ties methods given two survival curves and\ncensoring distributions. Score test and Wald test for\nregression analysis of grouped survival data. Calculation of\nsurvival curves for events defined by the response variable in\na mixed effects model crossing a threshold with or without\nconfirmation.",
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