[R] Writing greek letters and subscripts in graph

Dear R-users, I would like to write Greek letters followed by subscripts in a graph (on the X-axis and in a legend). I would appreciate any help. thank you, delphine courvoisier Delphine Courvoisier Clinical Epidemiology Division University of Geneva

[R] simulate data with binary outcome and correlated predictors

tor(dataS$DV) dataS[1:(N*propSick),1:3]<-dataSick dataS[(N*propSick+1):N,1:3]<-dataHealthy _____ thanks in advance for any suggestions, Delphine Courvoisier Clinical Epidemiology Division University of Geneva Hospital +4122 37 29029