Problem 76. De-dupe
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
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.
Solution Comments
Show commentsProblem Recent Solvers2979
Suggested Problems
-
Return a list sorted by number of occurrences
2753 Solvers
-
middleAsColumn: Return all but first and last element as a column vector
599 Solvers
-
Area of an equilateral triangle
5989 Solvers
-
Find the Oldest Person in a Room
16564 Solvers
-
9056 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!