• KX Academy

  fundamentals capstone 3.1

  Posted by Kal8na on April 9, 2024 at 1:54 pm

  I have a problem when using the aj method to join trade and nbbo tables.

  answer: tradeContext: aj[option_idtime;trade;nbbo]

  error: splay: Unimplemented operation on splayed table

  megan_mcp replied 7 months, 2 weeks ago 2 Members · 1 Reply
• 1 Reply

• 

  megan_mcp

  Administrator

  April 10, 2024 at 10:54 am

  Hi @kal8na

  So the question is asking for more than just joining the two tables.

  – It’s looking for the last date

  – It’s looking you to add two extra columns bid and ask which contain information from the nbbo table

  Here is an example from the documentation to help (screenshot below).

  If you have any further questions please let me know!

  Thanks,

  Megan

  

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