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• R’s regular scoping rules only use the enclosing parent; parent.frame() allows you to access the calling parent.


Also, where would it be useful to use parent.frame() instead of parent.env() and vice versa.


Keywords. programming, data.


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R: Programming. Lexical scoping. In R, the values associated with free variables are resolved by rst looking in the environment in which the


R_Programming - This is a repository for any and all code written for the R Programming Coursera course through Johns Hopkins University.


I confidently stated at parent.frame(3) was the correct frame to use, and I stand by that, but am slightly confused over how parent.frame 1 and 3 differ in how they are evaluated. More specifically, I don't understand why `parent.frame(1)` works as it does.


Data.frame is essentially the built in R default way of creating a matrix holding data. Data.table allows you to create more specific data structures to hold your data.


In most programming languages, you can only access the values of a function’s arguments. In R, you can also access the code used to compute them.