Do you still remember the difference between an argument with and without default values? The usage section in the sd() documentation shows the following information: sd (x, na.rm = FALSE) This tells us that x has to be defined for the sd() function to be called correctly, however, na.rm already has a default value. Not specifying this argument won't cause an error. You can define default argument values in your own R functions as well. You can use the following recipe to do so: my_fun <- function (arg1, arg2 = val2) { body } The editor on the right already includes an extended version of the pow_two() function from before. Can you finish it? Ⓒ Instructions 70 XP • Add an optional argument, named print_info, that is TRUE by default. 2 3 # Finish the pow_two the pow_two() function pow_two <-function(x) { y <- x^2 print (paste(x, "to the power two equals", y)) return(y) 4 5 6} R Console Slides Notes Parsing error in script.R:7:17: unexpected assignment 6: } 7: if (print_info) ← - Parsing error in script.R:6:19: unexpected assignment 5 Run Code Submit Answer

Do you still remember the difference between an argument with and without default values? The usage section in the sd() documentation shows the following information: sd (x, na.rm = FALSE) This tells us that x has to be defined for the sd() function to be called correctly, however, na.rm already has a default value. Not specifying this argument won't cause an error. You can define default argument values in your own R functions as well. You can use the following recipe to do so: my_fun <- function (arg1, arg2 = val2) { body } The editor on the right already includes an extended version of the pow_two() function from before. Can you finish it? Ⓒ Instructions 70 XP • Add an optional argument, named print_info, that is TRUE by default. 2 3 # Finish the pow_two the pow_two() function pow_two <-function(x) { y <- x^2 print (paste(x, "to the power two equals", y)) return(y) 4 5 6} R Console Slides Notes Parsing error in script.R:7:17: unexpected assignment 6: } 7: if (print_info) ← - Parsing error in script.R:6:19: unexpected assignment 5 Run Code Submit Answer

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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In C++ fill in the blanks
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