title: Buy Till You Die(BTYD) Model Validation in R
body: <p>I ran the BTYD package in R which predicts the number of transactions that a customer is expected to make in the future.These expected values that I get are not integers but are in the form 0.14, 0.79, 1.85, etc. In reality, however a customer will only make integral number of transactions - I have this data as well. My question is - how do I validate the performance of my model? What tests can I use to check that my model is predicting close enough results. Or is there a maximum likelihood function that will give me integral values of my Expected transactions through which I can compare the actual and expected results?</p>
  
  <p>Any help will be appreciated.</p>