how to calculate the Euclidean norm of a vector in R? -

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i tried norm, think gives wrong result. (the norm of c(1, 2, 3) sqrt(1*1+2*2+3*3), returns 6..

x1 <- 1:3 norm(x1) # error in norm(x1) : 'a' must numeric matrix norm(as.matrix(x1)) # [1] 6 as.matrix(x1) #      [,1] # [1,]    1 # [2,]    2 # [3,]    3 norm(as.matrix(x1)) # [1] 6

does know what's function calculate norm of vector in r?

this trivial function write yourself:

norm_vec <- function(x) sqrt(sum(x^2))

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