search for: hp_tot

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2010 Sep 08
2
Correlation question
...39;m observing what I believe is weird behaviour when attempting to do something very simple. I want a correlation matrix, but my matrix seems to contain correlation values that are not found when executed on pairs: > test2$P2 [1] 2 2 4 4 1 3 2 4 3 3 2 3 4 1 2 2 4 3 4 1 2 3 2 1 3 > test2$HP_tot [1] 10 10 10 10 10 10 10 10 136 136 136 136 136 136 136 136 136 136 15 [20] 15 15 15 15 15 15 c=cor(test2$P3,test2$HP_tot,method='spearman') > c [1] -0.2182876 > c=cor(test2,method='spearman') Warning message: In cor(test2, method = "spearman") : t...