> x1 <- 1:3> norm(as.matrix(x1), "F") [1] 3.741657
> x2 <- 1:2
> norm(as.matrix(x2),"F")
[1] 2.236068
参考http://stackoverflow.com/questions/10933945/how-to-calculate-the-euclidean-norm-of-a-vector-in-r> x1 <- 1:3> norm(as.matrix(x1), "F") [1] 3.741657
> x2 <- 1:2
> norm(as.matrix(x2),"F")
[1] 2.236068
参考http://stackoverflow.com/questions/10933945/how-to-calculate-the-euclidean-norm-of-a-vector-in-r
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