diff

diff(X) returns X adjacent element differences
diff(X,k) applies diff function k times on X
diff(X,k,dim) applies diff function k times on X along dimension dim

Examples

> X = [1 3 3 4; 5 6 2 5; 1 2 0 1]#

            1            3            3            4
            5            6            2            5
            1            2            0            1

> diff(X)#

            4            3           -1            1
           -4           -4           -2           -4

> diff(X,2)#

           -8           -7           -1           -5

> diff(X,2,2)#

           -2            1
           -5            7
           -3            3

diff

Examples

See also