Manually applying ColumnCopier to be able to use OnnxConverter

[keeed]

How do I manually apply the ColumnCopier to the "taxi-fare-train.csv" test data from here https://docs.microsoft.com/en-us/dotnet/machine-learning/tutorials/taxi-fare so that I can export the PredictionModel using the OnnxConverter?

[codemzs]

please see this sample https://github.com/dotnet/machinelearning/blob/master/docs/samples/Microsoft.ML.Samples/Dynamic/Transforms/CopyColumns.cs