Remove all the redundant elements in a vector, but keep the first occurrence of each value in its original location. So if
a = [5 3 6 4 7 7 3 5 9]
then
dedupe(a) = [5 3 6 4 7 9]
Solution Stats
Problem Comments
4 Comments
Solution Comments
Show comments
Loading...
Problem Recent Solvers3817
Suggested Problems
-
Find the numeric mean of the prime numbers in a matrix.
9131 Solvers
-
Swap the first and last columns
22511 Solvers
-
3733 Solvers
-
1909 Solvers
-
724 Solvers
More from this Author96
Problem Tags
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!
why I use ver.2012b can pass all the tests,but not succeded in cody?
[b,ia]=unique(a,'first');
b=sortrows([b;ia]',2)';
b=b(1,:);
solved in one line !
nice problem
Hi, bainhome:
Cody is based on the 'current' version of MATLAB, not R2012b. Many functions are unchanged, but a few have changed (modified, new, or removed), including "unique".
You must add the 'legacy' flag to the list of arguments to preserve the behaviour of the "unique" function from R2012b and prior releases — refer to the documentation (link posted by Jakub Galecki).
—DIV
if u know a specific function its too easy.