public static void Sqrt(SparseVector <double> vec)
{
var innerDat = vec.InnerDat;
for (int i = 0; i < innerDat.Count; i++)
{
vec.SetDirect(i, Math.Sqrt(innerDat[i]));
}
}
public static void NrmVecL2(SparseVector <double> vec)
{
ThrowException(vec == null ? new ArgumentNullException("vec") : null);
double len = GetVecLenL2(vec);
ThrowException(len == 0 ? new InvalidOperationException() : null);
ArrayList <double> datInner = vec.InnerDat;
for (int i = 0; i < vec.Count; i++)
{
vec.SetDirect(i, datInner[i] / len);
}
}
public static bool TryNrmVecL2(SparseVector <double> vec)
{
ThrowException(vec == null ? new ArgumentNullException("vec") : null);
double len = GetVecLenL2(vec);
if (len == 0)
{
return(false);
}
ArrayList <double> datInner = vec.InnerDat;
for (int i = 0; i < vec.Count; i++)
{
vec.SetDirect(i, datInner[i] / len);
}
return(true);
}
