When to install.packages for grader Dr. Ballings,
For the stock project I create a few extra variables using the "lubridate" package for my KNN algorithm. Should I include
"install.packages(lubridate)" and "library(lubridate)" in my prediction function? Or have install.packages right before he creates the
prediction function? Also I assume he has the KNN algorithm package installed so i don't have to include the code for him installing the KNN
Answers and follow-up questions Answer or follow-up question 1
Make no assumptions. Nothing is pre-installed.
Also, make sure that the function does not install the package each and every time it is called.
It should check if it is installed, and if not, install it.
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