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2003 Jul 31
2
how as.numeric() !-> factor
Dear all, I have divided two vectors: Np.occup97.98<- as.data.frame(cbind(site = levels(sums$site), Np.occup97.98 = sums$Ant.Nptrad97.98/Ant.trad$Ant.trad97.98)) > Np.occup97.98 site Np.occup97.98 1 erken97 0.342592592592593 2 erken98 0.333333333333333 3 rormyran 0.48471615720524 4 valkror 0.286026200873362 However, at a later stage of the analysis I want > round(Np.occup97.98[,2], 2) Error in Math.factor(x, digits) : "round" not meaningful for factors neither did this work: > ro...