MATLAB: If statement for changing size of vector…

Question

I'm running a for loop which gives an output 'x'. This output can be a vector of size (n,1). However I want to assign d=0 when n is larger than 1?

Something like this:

if x == size(1,1)
    d = double(Residual_d(x))
else if x ~= size(1,1)
    d = 0
end

, where Residual_d is a previous symbolic function which outputs 'x'.

Thanks in advance!

However, the above does not work as the loop jumps straight through the if statement to the elseif statement.

Answer 1

You are taking the size of the value "1", not x. Did you mean something like this?

if size(x,1)==1
    d = double(Residual_d(x))
else
    d = 0
end