setdiff

Arguments

a

vector of real numbers or strings

b

vector of real numbers or strings

v

vector of real numbers or strings with same orientation than a

ka

row vector of integers, ka(i) is the location of v(i) in a

Description

setdiff(a,b) returns a sorted vector which retains the a entries which are not in b

[v,ka]=setdiff(a,b) returns a sorted vector which retains the a entries which are not in b and the location of these entries in a.

Examples

a = [223;111;2;4;2;2];
b = [2;3;21;223;123;22];
setdiff(a,b)
[v,k]=setdiff(string(a),string(b))

See also

• unique — extracts (and sorts) distinct components of a vector or a matrix
• gsort — sorting by quick sort algorithm
• union — extract union components of a vector