/// <summary>
/// Merges another instance of <see cref="CountMinSketch{T}"/> with this collection. The results will be an aggregate of both collections after merging.
/// </summary>
/// <param name="other">The <see cref="CountMinSketchBase{T}"/> that should be merged into the current collection.</param>
/// <returns>This <see cref="CountMinSketch{T}"/> with the results from the other collection included.</returns>
public override CountMinSketchBase <T> MergeInPlace(CountMinSketchBase <T> other)
{
if (other == null)
{
throw new IncompatibleMergeException("Cannot merge null estimator");
}
if (other.Depth != Depth)
{
throw new IncompatibleMergeException("Cannot merge estimators with different depths");
}
if (other.Width != Width)
{
throw new IncompatibleMergeException("Cannot merge estimators with different widths");
}
if (other.Seed != Seed)
{
throw new IncompatibleMergeException("Cannot merge sketches that were initialized with different seeds");
}
for (var i = 0; i < _table.GetLength(0); i++)
{
for (var j = 0; j < _table.GetLength(1); j++)
{
_table[i, j] = _table[i, j] + other.Table[i, j];
}
}
_totalCount += other.TotalCount;
return(this);
}
/// <summary>
/// Merges another <see cref="CountMinSketchBase{T}"/> with this one in place. Other must have the same depth, width, and seed to be merged.
/// </summary>
/// <param name="other"><see cref="CountMinSketchBase{T}"/> to be merged with this <see cref="CountMinSketchBase{T}"/></param>
/// <returns></returns>
public abstract CountMinSketchBase <T> MergeInPlace(CountMinSketchBase <T> other);
