public static CommonOutputs.TransformOutput MinMax(IHostEnvironment env, NormalizeTransform.MinMaxArguments input) { Contracts.CheckValue(env, nameof(env)); var host = env.Register("MinMax"); host.CheckValue(input, nameof(input)); EntryPointUtils.CheckInputArgs(host, input); var xf = NormalizeTransform.Create(host, input, input.Data); return(new CommonOutputs.TransformOutput { Model = new TransformModel(env, xf, input.Data), OutputData = xf }); }
public static CommonOutputs.MacroOutput <CommonOutputs.TransformOutput> IfNeeded( IHostEnvironment env, NormalizeTransform.MinMaxArguments input, EntryPointNode node) { var schema = input.Data.Schema; DvBool isNormalized = DvBool.False; var columnsToNormalize = new List <NormalizeTransform.AffineColumn>(); foreach (var column in input.Column) { int col; if (!schema.TryGetColumnIndex(column.Source, out col)) { throw env.ExceptUserArg(nameof(input.Column), $"Column '{column.Source}' does not exist."); } if (!schema.TryGetMetadata(BoolType.Instance, MetadataUtils.Kinds.IsNormalized, col, ref isNormalized) || isNormalized.IsFalse) { columnsToNormalize.Add(column); } } var entryPoints = new List <EntryPointNode>(); if (columnsToNormalize.Count == 0) { var entryPointNode = EntryPointNode.Create(env, "Transforms.NoOperation", new NopTransform.NopInput(), node.Catalog, node.Context, node.InputBindingMap, node.InputMap, node.OutputMap); entryPoints.Add(entryPointNode); } else { input.Column = columnsToNormalize.ToArray(); var entryPointNode = EntryPointNode.Create(env, "Transforms.MinMaxNormalizer", input, node.Catalog, node.Context, node.InputBindingMap, node.InputMap, node.OutputMap); entryPoints.Add(entryPointNode); } return(new CommonOutputs.MacroOutput <CommonOutputs.TransformOutput>() { Nodes = entryPoints }); }
public static void _Normalize() { var args = new NormalizeTransform.MinMaxArguments() { Columns = new[] { NormalizeTransform.AffineColumn.Parse("A"), new NormalizeTransform.AffineColumn() { Name = "B", Source = "B", EnsureZeroUntouched = false }, }, EnsureZeroUntouched = true, MaximumExampleCount = 1000 }; if (args == null) { throw new Exception("No NormalizeTransform."); } }
public static void _Normalize() { var args = new NormalizeTransform.MinMaxArguments() { Column = new[] { NormalizeTransform.AffineColumn.Parse("A"), new NormalizeTransform.AffineColumn() { Name = "B", Source = "B", FixZero = false }, }, FixZero = true, MaxTrainingExamples = 1000 }; if (args == null) { throw new Exception("No NormalizeTransform."); } }