/// <summary>
/// Rehydrate the hybrid estimator from full data.
/// </summary>
/// <param name="data">The data to restore</param>
public void Rehydrate(IHybridEstimatorFullData <int, TCount> data)
{
if (data == null)
{
return;
}
_minwiseEstimator?.Rehydrate(data.BitMinwiseEstimator);
_strataEstimator.Rehydrate(data.StrataEstimator);
_minwiseReplacementCount = Math.Max(0, data.ItemCount - (_strataEstimator.ItemCount + (_minwiseEstimator?.ItemCount ?? 0L)));
}
/// <summary>
/// Compress the estimator.
/// </summary>
/// <param name="inPlace"></param>
/// <returns></returns>
public IStrataEstimator <TEntity, int, TCount> Compress(bool inPlace = false)
{
var res = Extract().Compress(Configuration);
if (inPlace)
{
Rehydrate(res);
return(this);
}
var estimator = new StrataEstimator <TEntity, TId, TCount>(res.BlockSize, Configuration, res.StrataCount);
estimator.Rehydrate(res);
return(estimator);
}
/// <summary>
/// Fold the strata estimator.
/// </summary>
/// <param name="factor"></param>
/// <param name="inPlace"></param>
/// <returns></returns>
public virtual IStrataEstimator <TEntity, int, TCount> Fold(uint factor, bool inPlace = false)
{
var res = Extract().Fold(Configuration, factor);
if (inPlace)
{
Rehydrate(res);
return(this);
}
var strataEstimator = new StrataEstimator <TEntity, TId, TCount>(res.BlockSize, Configuration, res.StrataCount);
strataEstimator.Rehydrate(res);
return(strataEstimator);
}
