## Week 2 Quiz >> R Programming

1. Mean I define the following duty in Rcube x^3 }What is the an outcome of runningcube(3)in R after defining this function?An error is returned since ‘n’ is not mentioned in the speak to to ‘cube’**The number 27 is returned**The individuals is motivated to clues the worth of ‘n’.A warning is given with no worth returned.2. The following code will produce a warning in R.x 5) x Why?**‘x’ is a vector of length 10 and ‘if’ have the right to only check a solitary logical statement.You are watching: How are free variables in r functions resolved?**The syntax the this R expression is incorrect.The expression supplies curly braces.There space no facets in ‘x’ that are better than 5You cannot set ‘x’ to be 0 because ‘x’ is a vector and 0 is a scalar.3. Consider the adhering to functionf g y + z } z x + g(x) }If ns then run in Rz f(3)What value is returned?4716

**10**4. Take into consideration the adhering to expression:What is the worth of ‘y’ after examining this expression?x y NA } rather 10 5

**10**NA35. Take into consideration the adhering to R functionWhich prize in the above duty is a totally free variable?h z if(!is.null(y)) z else z g if(d == 3L) return(g) g g }

**f**zdLg6. What is an environment in R?

**a arsenal of symbol/value pairs**a special kind of functiona perform whose facets are every functionsan R package that only has data7. The R language offers what kind of scoping preeminence for resolving complimentary variables?dynamic scopingglobal scoping

**lexical scoping**compilation scoping8. Exactly how are complimentary variables in R features resolved?The worths of cost-free variables are tried to find in the atmosphere in i beg your pardon the function was definedThe values of complimentary variables are searched for in the global environmentThe values of cost-free variables are tried to find in the working directory

**The values of totally free variables are searched for in the atmosphere in which the function was called**9. What is one of the consequences of the scoping rules used in R?Functions cannot be nested

**All objects must be save in memory**R objects cannot be larger than 100 MBAll objects can be save on the disk10. In R, what is the parent frame?

**It is the atmosphere in which a duty was called**It is the environment in which a function was definedIt is always the global environmentIt is the package search list

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