/// <summary>
/// Initializes a new instance of the <see cref="DenseVectorPackF"/> class.
/// </summary>
/// <param name="other">The <see cref="DenseVectorPackF"/> to copy the data from.</param>
/// <exception cref="ArgumentNullException">
/// <paramref name="other"/> is <b>null</b>.
/// </exception>
public DenseVectorPackF(DenseVectorPackF other)
{
if (other == null)
{
throw new ArgumentNullException(nameof(other));
}
this.Count = other.Count;
this.Length = other.Length;
this.X = other.X;
}
/// <summary>
/// Packs a collection of dense vectors.
/// </summary>
/// <param name="vectors">The dense vectors to pack.</param>
/// <returns>
/// The <see cref="DenseVectorPackF"/> object that contains packed dense vectors.
/// </returns>
/// <exception cref="ArgumentNullException">
/// <paramref name="vectors"/> is <b>null</b>.
/// </exception>
public static DenseVectorPackF Pack(IList <IDenseVector <float> > vectors)
{
if (vectors == null)
{
throw new ArgumentNullException(nameof(vectors));
}
if (vectors.Count == 0)
{
return(new DenseVectorPackF());
}
DenseVectorPackF result = new DenseVectorPackF(vectors.Count, vectors[0].Length);
float[] x = result.X;
for (int i = 0, ii = result.Count, len = result.Length, off = 0; i < ii; i++, off += len)
{
Vectors.Copy(len, vectors[i].X, vectors[i].Offset, x, off);
}
return(result);
}