@Adrian Velasquez, according to rescale documentation each element should be rescaled to [0..1] using this method:
l + [(A-inmin)./(inmax-inmin)].*(u-l)
to scale the elements of an array A when the values of A are within the bounds of inmin and inmax.
- If l and u are not specified, then rescale uses the default values 0 and 1, respectively.
- If the 'InputMin' name-value pair is not specified, then rescale sets its value to the default min(A(:)).
- If the 'InputMax' name-value pair is not specified, then rescale sets its value to the default max(A(:)).
In your case since l = 0, u = 1, InputMin = min(x(:)) and InputMax = max(x(:) it becomes:
0+[(x-50)./(100-50)].*(1-0) == (x-50)/50 ==> 100 becomes 1, 50 becomes 0 and so on.
So rescale works as advertised.
