CodeGrade works with any industry standard static code analysis tool or linter. From Lintr, Goodpractice, Styler and Semgrep.
Use built in Input/Output tests, unit testing with any unit testing framework like testthat and RUnit or run any custom grading script you already have on our autograder.
CodeGrade supports any R version, all of R's (through CRAN or other sources) like tidyverse, ggplot2, RMarkdown and devtools. Teach all types of Data Science and Data Manipulation courses.
"I definitely see that it paid off in grading time saved: we have saved countless hours of grading. The students now submit their code and can right away see if it runs and if there are errors."