Are you asking us to do your homework? This is not a homework list. For the t-test look in any introductory R manual. For the histograms, look in the lattice library.
HTH Daniel -- View this message in context: http://r.789695.n4.nabble.com/More-complex-historgram-tp2197823p2216076.html Sent from the R help mailing list archive at Nabble.com. ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
