How to analyze the data from 2*2 cross-over design trials?

Hello, I want to know how to use R to analyze the data from 2*2 cross-over trial? Which codes do I need to enter or which packages do I need to install? Could you help? Thank you very much!!

Hi @hejlin8,
Welcome to the RStudio Community Forum.

Google is your friend! Try searching for "2x2 cross-over trial analysis in R".

The slides at this link give some very nice explanation and code options:


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Dear @DavoWW ,
That's great! :grinning:
Thanks a lot, cheers!