Dear Kjetil, Thanks a lot for your help. I could not get histogram when I ask by R. It simply gave me blank plot between frequency and test. I want to plot sample (y) verses xl. Can you please tell me are both variables were permuted or only x? Thanking your help, Chitra -- View this message in context: http://r.789695.n4.nabble.com/Please-help-me-about-Monte-Carlo-Permutation-tp3017131p3017634.html Sent from the R help mailing list archive at Nabble.com.
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