Don't let your analysis run in circles
Posted on 26 June 2017 in Pietro's Data Bulletin
TL;DR: If you use a certain criteria to first select a part of your data (e.g. a certain set of neurons) and then test another related measure on this subset, you might be heavily biasing your results. An easy way to prevent this is to use half of your data for selection, and the other half for testing.
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