Find the cumulative maximum of an array without using the built-in function cummax (and a few others). Your function should act identically to cummax, allowing the same inputs.
Examples
If X = [0 4 3
6 5 2]
cumax(X,1) is [0 4 3 and cumax(X,2) is [0 4 4
6 5 3] 6 6 6]
cumax(X,1,'reverse') is [6 5 3 and cumax(X,2,'reverse') is [4 4 3
6 5 2] 6 5 2]
Also,
cumax([8 9 1 10 6 1 3 6 10 10]) returns [8 9 9 10 10 10 10 10 10 10]
cumax([8 9 1 10 6 1 3 6 10 10]') returns [8 9 9 10 10 10 10 10 10 10]'
Solution Stats
Problem Comments
3 Comments
Solution Comments
Show comments
Loading...
Problem Recent Solvers41
Suggested Problems
-
Read a column of numbers and interpolate missing data
2350 Solvers
-
Sort numbers by outside digits
159 Solvers
-
Calculate the area of a triangle between three points
3415 Solvers
-
Removing rows from a matrix is easy - but what about inserting rows?
263 Solvers
-
190 Solvers
More from this Author43
Problem Tags
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!
There is a problem is the first test.
Remove the assert(isempty(strfind(filetext,'max'))) because the name of the function cumax contains the string max.
Thank you.
@Matthew, could you be so kind and fix the first test? As it is, it is impossible to solve this problem since the function name "cumax" itself contains the string "max".
This also makes it impossible to obtain the Matrix Manipulation III badge.
The test suite has been updated temporarily.