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Scilab Help >> Elementary Functions > Set operations > setdiff

setdiff

returns components of a vector which do not belong to another one

Calling Sequence

v=setdiff(a,b)
[v,ka]=setdiff(a,b)

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 — extract unique components of a vector or matrices
gsort — sorting by quick sort algorithm
union — extract union components of a vector

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