Problem 42982. Select every other element of a matrix
Write a function called
outMat = odd_idx( myMat )
that takes a matrix, myMat, as input argument and returns a matrix that contains only those elements of myMat that are in odd rows and columns. In other words, it would return the elements of myMat at indices (1,1), (1,3), (1,5), …, (3,1), (3,3), (3,5), …, etc. Note that both the row and the column of an element must be odd to be included in the output. The following would not be returned: (1,2), (2,1), (2,2) because either the row or the column or both are even. As an example, if myMat were a 5-by-8 matrix, then the output must be 3-by-4 because the function omits rows 2 and 4 of myMat and it also omits columns 2, 4, 6, and 8 of myMat.
Solution Stats
Problem Comments
Solution Comments
Show commentsProblem Recent Solvers51
Suggested Problems
-
Make a run-length companion vector
642 Solvers
-
Given a matrix, swap the 2nd & 3rd columns
1118 Solvers
-
651 Solvers
-
783 Solvers
-
multiply an array by its position number
108 Solvers
Problem Tags
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!