MATLAB: Extrapolation/error handling

error handling spline

I'm trying to prevent extrapolation, the input speed (v) can't be lower than 2 or higher than 200. I'm trying to use if/else but I'm being told by a "test-programme" that "Function does not result in error when input results in extrapolation". What am I doing wrong?
My code:
function c = consumption(v)
load roadster.mat;
x = 2:2:200;
y = consumption_Whpkm;
xx=2:200;
pp=spline(x,y);
c = ppval(pp, v);
if v<2 | v>200
    error ('Too fast/slow')
else
    contine
end
end

Best Answer

I am guessing that v is non-scalar, in which case you will need to use any:
if any(v<2 | v>200)
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