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Does anyone know for sure whether we can use the “?” inside R during the actual exam? For example can i type “?predict” to get help on model predictions
Hi Porkins,
Yes, this works. The ? is part of the R libraries which are installed on the Prometric computers. There is no internet connection, but this is not needed because the files are local.
For example, here are a two of the useful references, which are included in our 14 pages of cheat sheets:
- ?family and ?make.link for GLMs. This is useful when choosing the link function and response family for genaralized linear models. The default arguments are the canonical links.
- ?stepAIC and ?AIC for formulas of the penalized log likelihoods. Use this if you are unsure of whether a higher or lower AIC/BIC is better or worse.
Best regards,
Sam Castillo
Course Instructor at ExamPA.net
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