Exception in CreditCard Fraud Detection sample while migrating to v0.11

[prathyusha12345]

Issue

• While migrating CreditCard Fraud Detection sample I am getting the below exception while trying to save train/test data

                //(trainData, testData) = classification.TrainTestSplit(data, testFraction: 0.2, stratificationColumn: "Label");
                TrainTestData trainTestData = classification.TrainTestSplit(data, testFraction: 0.2);
                trainData = trainTestData.TrainSet;
                testData = trainTestData.TestSet;

                // save test split
                using (var fileStream = File.Create(Path.Combine(_outputPath, "testData.csv")))
                {
                    mlContext.Data.SaveAsText(testData, fileStream, separatorChar:',', headerRow:true, schema: true);
                }

[Ivanidzo4ka]

please change your textloader options to allowQuote

[CESARDELATORRE]

It was related to the fact that the DataSet Label file had the Boolean values in quotes, such as:

• "1" (Instead of 1)
• "0" (Instead of 0)

This is a side-effect/issue of turning off quoting by default in ML.NET:
#2630

I modified the original dataset so there are no quotes in the file, plus I refactored the sample so it is simpler.
I successfully migrated that sample to v0.11, so I'm closing this issue.