Mobile Money and Financial Inclusion in Tanzania Challenge
Cash and prizes worth $2,250 USD
Who is most likely to use mobile money? And who is most likely to use other financial services?
519 data scientists enrolled, 163 on the leaderboard
26 March 2019—1 July 2019
Error on Submission
published 27 Jun 2019, 11:57

I am getting this error on submitting 'unknown error: undefined method `+' for nil:NilClass'. What does it mean?

figured it out. had dropped some rows from the test set,