oort questions

• Can reject_if be used to reject a nested resource if all fields except one is blank?
• What is a "good" R value when comparing 2 signals using cross correlation?
• Is there a function to split a large dataframe into n smaller dataframes of equal size (by row) and have an n+1 dataframe of smaller size?
• How to vectorize equations?
• Algorithm to Match Time Dependent (1D) Signals
• How to write an RSpec test for a simple PUT update?
• What is the difference between <NA> and NA?

oort answers