rm(list=ls()) # remove all existing variables
source("script.R") # your current working directory must be where this script.R residesAppendix A — Homework
Homework assignments in this course will be submitted to Gradescope through the appropriate Canvas assignment. On Gradescope, assignments will be automatically graded through Gradescope’s autograder. You will be able to submit the homework an unlimited number of times and your grade will be the last submission.
This document intends to provide suggestions for common issues when submitting to the autograder on Gradescope.
A.1 Score of 0
If you receive a score of 0, it is likely your script is not being evaluated at all. The most likely causes of this are 1) the script has the wrong name and 2) the script is causing an Error on the Gradescope autograder.
A.1.1 Wrong script name
Make sure your script has the correct name by checking the assignment. The script must contain the proper capitalization.
A.1.2 Script error
If your script produces an Error, then the autograder will not be able to evaluate your results.
The first step in ensuring your script runs without an Error is to start a new R session and then run the following,
If the console says “Error:”, then you must fix the error before proceeding.
If no Error occurs and the script is still not graded, then an Error may be produced on Gradescope that is not produced on your computer.
One reason for this Error could be that you are loading a package that is not available on the autograder. First, remove any unnecessary as this is good coding practice. Second, check the homework assignment and only use packages that allowed for that assignment.