ord function

Order

In case of vectors, an ordering of its elements in ascending order is produced; in case of matrices, the ordering in ascending order refers to every column.

ord(X)

Arguments

• X: Vector or matrix to be ordered

Returns

• A: Vector or matrix with the elements sorted in ascending order

• a: Vector or matrix with the ordering indices

Author(s)

Maria Antonietta Del Ferraro mariaantonietta.delferraro@yahoo.it

Henk A.L. Kiers h.a.l.kiers@rug.nl

Paolo Giordani paolo.giordani@uniroma1.it

Examples

# vector
x <- rnorm(6)
y <- ord(x)
# matrix
X <- matrix(rnorm(6*3),ncol=3)
Y <- ord(X)