repval(X) finds all repeated values for input X, and their attributes.

-The input may be vector, matrix, char string, or cell of strings

　

Y=repval(X) returns the repeated values of X

　

[RV, NR, POS, IR]=repval(X) returns the following outputs

RV : Repeated Values (sorted)

NR : Number of times each RV was repeated

POS : Position vector of X of RV entries

IR : Index of repetition





Example:

X=[1 5 5 9 5 5 1]　

[RV,NR,POS,IR]=repval(X)



Output:

RV = [1 5]　 Numbers　1　and　5　are repeated values

NR = [2 4]　 Respectively repeated 2 and 4 times

POS = [1 7 2 3 5 6]　 Position index of X for repeated values

IR = [1 1 2 2 2 2]　 Corresponding to which index of RV