computation of quartiles
s = quart(x) s = quart(x, orientation)
real or complex vector or matrix
index of the dimension along which the quart is computed. It can be either
"*"
(default), "r"
or
"c"
real or complex scalar or vector
For a vector or a matrix x, q = quart(x) or q = quart(x, "*") returns in the vector q the quartiles of x. q = quart(x, 'r') (or, equivalently, q = quart(x, 1)) are the rowwise percentiles. It returns in each column of the matrix q the quartiles of data in the corresponding column of x.
q = quart(x, 'c') (or, equivalently, q = quart(x, 2)) are the columnwise quartiles. It returns in each row of the matrix q the quartiles of data in the corresponding row of x.
Wonacott, T.H. & Wonacott, R.J.; Introductory Statistics, fifth edition, J.Wiley & Sons, 1990.