rankindx#

Purpose#

Returns the vector of ranks of a vector.

Format#

y = rankindx(x, flag)#

Parameters:

x (Nx1 vector) – data
flag (scalar) – 1 for numeric data or 0 for character data.

Returns:

y (Nx1 vector) – containing the ranks of x. That is, the rank of the largest element is \(N\) and the rank of the smallest is 1. (To get ranks in descending order, subtract y from N+1).

Examples#

x = { 12, 4, 15, 7, 8 };
r = rankindx(x, 1);

After the code above, r is equal to:

Remarks#

rankindx() assigns different ranks to elements that have equal values (ties). Missing values are assigned the lowest ranks.