public override IEstimator <ITransformer> Reconcile(IHostEnvironment env, PipelineColumn[] toOutput,
IReadOnlyDictionary <PipelineColumn, string> inputNames, IReadOnlyDictionary <PipelineColumn, string> outputNames, IReadOnlyCollection <string> usedNames)
{
var infos = new TermTransform.ColumnInfo[toOutput.Length];
Action <TermTransform> onFit = null;
for (int i = 0; i < toOutput.Length; ++i)
{
var tcol = (ITermCol)toOutput[i];
infos[i] = new TermTransform.ColumnInfo(inputNames[tcol.Input], outputNames[toOutput[i]],
tcol.Config.Max, (TermTransform.SortOrder)tcol.Config.Order);
if (tcol.Config.OnFit != null)
{
int ii = i; // Necessary because if we capture i that will change to toOutput.Length on call.
onFit += tt => tcol.Config.OnFit(tt.GetTermMap(ii));
}
}
var est = new TermEstimator(env, infos);
if (onFit == null)
{
return(est);
}
return(est.WithOnFitDelegate(onFit));
}
internal void WrapTermWithDelegate(Action <TermTransform> onFit)
{
_term = (TermEstimator)_term.WithOnFitDelegate(onFit);
}