Last week, a student asked me about multiple tests. More precisely, she ran an experience over – say – 20 weeks, with the same cohort of – say – 100 patients. An we observe some
size=100 nb=20 set.seed(1) X=matrix(rnorm(size*nb),size,nb)
(here, I just generate some fake data). I can visualize some trajectories, over the 20 weeks,
library(RColorBrewer) cl1=brewer.pal(12,"Set3")[12] cl2=brewer.pal(8,"Set2")[2:7] cl=c(cl1,cl2) boxplot(X) for(i in 1:length(cl)){ lines(1:20,X[i,],type="b",col=cl[i]) }