createDataPartion generates blank Test set


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The code you provided does not contain any data that we can run, so it's not possible for us to recreate the issue. If you like to get better help, I suggest you create a reprex next time. A reprex consists of the minimal code and data needed to recreate the issue/question you're having. You can find instructions how to build and share one here:

Judging by the code, I have one question/suggestion: what is this Vrate? The code is splitting based on the transformed_NY1A$Vrate value, and depending on its class and value this might lead to unexpected results. Can you show me a sample of the data you have (see the reprex guide).