R coding test: Pre-employment screening assessment to hire the best developers and data experts

Summary of the R (Coding): Debugging test

This R coding test assesses candidates’ ability to interpret R code and debug it based on a set of given requirements. For this R debugging test, candidates have 30 minutes to read through the requirements and fix a partially working script.

Covered skills

  • Debugging Questions

Use the R (Coding): Debugging test to hire

R developers, including data analysts, data scientists, statisticians, economists, and researchers, especially those in senior positions, or any position that requires the ability to read and correct the R code of others.

Type

Programming skills

Time

30 min

Languages

English

Level

Intermediate
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About the R (Coding): Debugging test

R is a popular programming language used for data analysis, statistics, and machine learning. R is widely used in various industries, including finance, healthcare, and marketing. Its ease of use and flexibility have made it a popular choice for data scientists and analysts.

The ability to debug code is an essential skill for successful R developers with advanced coding knowledge. As new features are being developed, bugs may be introduced into the code and disrupt the regular function of your software. It is, therefore, important for a developer to be able to identify bugs in the code based on a set of requirements and fix them. Given the collaborative nature of software development, it is also critical to be able to work with and correct the code of other developers.

This test provides candidates with a small R script that contains one or more bugs. The description clarifies the objective of the code and provides examples to illustrate how it should function. Candidates must then identify the bugs and fix them.

Candidates can run their code to see if certain pre-defined inputs return the expected result. Once candidates submit their code, the test is scored automatically using a wider set of test cases, which include more challenging corner cases. You can then inspect the code of candidates from your dashboard and play it back to see their thought process and how they came to their solution.

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The test is made by a subject-matter expert

Gary R

Gary has been working in the data science field for more than three years and is proficient in the fields of machine learning and data analysis. He has a Bachelor’s degree in Economics and a Master’s degree in Computer Science. The combination of those two fields helps Gary to achieve even greater results.

He is fond of computer science and loves to work on projects related to Artificial Intelligence which is, in his opinion, the future of our world.

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