Returns an array containing all the unique values in a matrix. In other words, this command returns all the elements in a matrix without repeating them if they appear more than once in the matrix.
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Syntax |
Description |
|---|---|
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out=unique(a); |
Returns an array containing all unique values in the matrix a.
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Example
Define a matrix and display all the unique elements in the Script Prompt.
A = [1,2;2,3];
?unique(A);
result:
1
2
3
format long; # set the precision to 16 digits
A= [2., 2.000000000000001; 3, 4.5];
?unique(A);
result:
2.000000000000000
2.000000000000001
3.000000000000000
4.500000000000000
format short; # set the precision to 8 digits
B= [2., 2.0000000000000001; 3, 4.5];
?unique(B);
result:
2
3
4.5
See Also