public ScalerCursor(RowCursor cursor, ScalerTransform parent, Func <int, bool> predicate)
{
_inputCursor = cursor;
_parent = parent;
_scalingFactors = parent._scalingFactors;
if (_scalingFactors == null)
{
throw parent._host.ExceptValue("The transform was never trained. Predictions cannot be computed.");
}
}
public ScalerCursor(DataViewRowCursor cursor, ScalerTransform parent, IEnumerable <DataViewSchema.Column> columnsNeeded)
{
_inputCursor = cursor;
_parent = parent;
_scalingFactors = parent._scalingFactors;
if (_scalingFactors == null)
{
throw parent._host.ExceptValue("The transform was never trained. Predictions cannot be computed.");
}
_columnsNeeded = columnsNeeded;
}
public static CommonOutputs.TransformOutput Scaler(IHostEnvironment env, ScalerTransform_ArgumentsEntryPoint input)
{
Contracts.CheckValue(env, nameof(env));
env.CheckValue(input, nameof(input));
var h = EntryPointUtils.CheckArgsAndCreateHost(env, EP_Scaler.Name, input);
var view = new ScalerTransform(h, input, input.Data);
return(new CommonOutputs.TransformOutput()
{
Model = new TransformModel(h, view, input.Data),
OutputData = view
});
}