Column of zeroes produces NaNs

[PetrToman]

Hi,
if there is a column of zeroes in the input data, which is to be normalized, the output becomes all NaNs (Not a number). This is because of zero division in Encog.Util.Arrayutil.NormalizedField.Normalize() method:

    public double Normalize(double v)
    {
        return ((v - _actualLow)/(_actualHigh - _actualLow))   // if _actualHigh  and _actualLow are both zero -> NaN
               *(_normalizedHigh - _normalizedLow)
               + _normalizedLow;
    }

There is already FixSingleValue() method, which would fix this problem, but it is not used (at all). The same applies for Java code.

[jeffheaton]

Thanks for pointing that out! I fixed this on both the Java and C# side. Added calls to FixSingle value in all of the constructors. Did this to both Java and C# sides.