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See the recommended documentation of this function
unique
extract unique components of a vector or matrices
Calling Sequence
[N [,k]]=unique(M) [N [,k]]=unique(M ,orient)
Arguments
- M
vector or matrix of numbers or strings
- orient
flag with possible values : 1 or "r", 2 or "c"
- N
vector or matrix of numbers or strings
- k
vector of integers
Description
unique(M)
returns a vector which retains the
unique entries of M
in ascending order.
unique(M,"r")
or
unique(M,1)
returns the unique rows of
M
in lexicographic ascending order.
unique(M,"c")
or
unique(M,2)
returns the unique columns of
M
in lexicographic ascending order.
If required the output argument k
contains the
position of the first encountered unique entries.
Examples
See Also
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