internal static NormalizingEstimator Normalize(this TransformsCatalog catalog,
NormalizingEstimator.NormalizationMode mode,
params InputOutputColumnPair[] columns)
{
var env = CatalogUtils.GetEnvironment(catalog);
env.CheckValue(columns, nameof(columns));
return(new NormalizingEstimator(env, mode, InputOutputColumnPair.ConvertToValueTuples(columns)));
}
/// <summary>
/// Normalize (rescale) several columns according to the specified <paramref name="mode"/>.
/// </summary>
/// <param name="catalog">The transform catalog</param>
/// <param name="mode">The <see cref="NormalizingEstimator.NormalizationMode"/> used to map the old values to the new ones. </param>
/// <param name="columns">The pairs of input and output columns.</param>
/// <example>
/// <format type="text/markdown">
/// <]
/// ]]>
/// </format>
/// </example>
public static NormalizingEstimator Normalize(this TransformsCatalog catalog,
NormalizingEstimator.NormalizationMode mode,
params ColumnOptions[] columns)
=> new NormalizingEstimator(CatalogUtils.GetEnvironment(catalog), mode, ColumnOptions.ConvertToValueTuples(columns));
/// <summary>
/// Normalize (rescale) the column according to the specified <paramref name="mode"/>.
/// </summary>
/// <param name="catalog">The transform catalog</param>
/// <param name="outputColumnName">Name of the column resulting from the transformation of <paramref name="inputColumnName"/>.</param>
/// <param name="inputColumnName">Name of the column to transform. If set to <see langword="null"/>, the value of the <paramref name="outputColumnName"/> will be used as source.</param>
/// <param name="mode">The <see cref="NormalizingEstimator.NormalizationMode"/> used to map the old values in the new scale. </param>
/// <example>
/// <format type="text/markdown">
/// <]
/// ]]>
/// </format>
/// </example>
public static NormalizingEstimator Normalize(this TransformsCatalog catalog,
string outputColumnName, string inputColumnName = null,
NormalizingEstimator.NormalizationMode mode = NormalizingEstimator.NormalizationMode.MinMax)
=> new NormalizingEstimator(CatalogUtils.GetEnvironment(catalog), outputColumnName, inputColumnName ?? outputColumnName, mode);