MATLAB and Simulink resources for Arduino, LEGO, and Raspberry Pi

Learn moreOpportunities for recent engineering grads.

Apply Today**New to MATLAB?**

Asked by Giorgos Papakonstantinou
on 16 Jun 2013

The first true element of column 1 of matrix a is at row 2. The last true element of column 1 of matrix a is at row 9. I want to get a matrix b whose 1st column will start with false, from row 2 to row 9 will b true and row 10 will be false. Likewise, I want to do the same for the rest of the columns of matrix a.

Example:

a =[

0 0 1 0 1 0 0 0 1 0 0 1 1 0 0 1 1 1 1 0 0 0 0 1 1 1 1 0 0 1 1 0 1 0 0 0 0 0 0 1];

b =[

0 0 1 0 1 0 1 0 1 0 1 1 1 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 0 0 1 0 0 0 1];

*No products are associated with this question.*

Answer by Andrei Bobrov
on 16 Jun 2013

Accepted answer

b = cumsum(a)&flipud(cumsum(flipud(a)))

## 0 Comments