//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++\\ || The chores may not be fun but these utilities may help || \\++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++// calogrank Covariate adjusted logrank test coxphCPE Gonen & Heller Concordance Probability Estimate coxphQuantile Survival time quantile as a function of covariate fedesign Trial Designs Based On Fisher's Exact Test gsdesign Group Sequential Designs gsdesign.binomial binary outcomes gsdesign.normal normal outcomes gsdesign.survival survival outcomes permtests Permutation versions of some common tests jonckheere.test Exact version of Jonckheere-Terpstra test permlogrank Survival comparisons with permutation reference ph2simon Simon's 2-stage Phase II design oc.twostage.bdry Two-stage boundary operating characteristics twostage.inference Inference following a two-stage design for response ph2single Exact single stage Phase II design power.ladesign Power of k-sample rank test under Lehmann alternative pselect Probability of selection under pick the winner rule ROCanalysis Functions to plot and compare ROC curves. roc.area.test Nonparametric area under the ROC curve roc.curve Empirical ROC curve roc.perm.test Permutation test to compare ROC curve toxbdry Stopping rule for toxicity monitoring bdrycross.prob Operating characteristics of a specific boundary