MATLAB: How to make a loop that writes in a new vector only values that meet a condition

filterfor loopif statement

I'm trying to make some kind of data filter that goes through a vector, compares every value with the previous one and writes the value in a new vector only if it is bigger than the previous one.
VPo=[0 0 0 0 1 0 2 3 4 0 5 4 3 0 2 1 0 0 0 0];
I wrote this simple loop: 
[row, column]=find (VPo == max(VPo));
for i=2:row
    if VPo (i,1) >= VPo (i-1,1)
       VPoF(i) = VPo(i,1);   
    end
end
The problem is that it writes all the values from VPo to VPoF until max(VPo) and doesn't do anything:
VPoF = VPo=[0 0 0 0 1 0 2 3 4 0 5];

Best Answer

Assuming you don't want the first value since there is no previous value to compare to:
x = [false, diff(VPo) > 0];
VPoF = VPo(x);
If you do want that first value, change the false to true.
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