CS50 R Data Science

This repository contains all the source codes from the lectures related to the professionnal certification CS50R

You will also find all the project submitted for it's validation.

Project list

• Representing data
  • pitstop: Exercice to analyse some data on formula one's pitstop.
  • big5: Small exercice to classify the degree of certain personnality traits from the data of a poll.
• Transforming data
  • librarian: Exercice to manipulate filtering using data frames and CSV data on books and authors.
  • Teahouse: Exercice to manipulate matrix with a small application to prompt user of a beverage menu choice.
  • Ontime: Manipulation of dataframe and basic vectorial operations to answer a prompt user over the reliability of a subway/bus route.
• Applyting functions
  • Carpet: Function manipulation to predict the number of visitor in an airport using a calculated growth_rate.
  • Happy: loops manipulation to request multiple CSV file to compute "happyness" score of multiple countries over the years.
  • Variations: while loop to print 20 random characters on the screen and delaying each print by 0.25 sec.
• Tidying data
  • Air: Exercice project using group by functionnalities with aggregation.
  • Zelda: Exercice project to show some statistics concerning zelda games using pipe operator.
• Visualizing data
  • Parked: R program to parse a text file containing songs' lyrics and display their frequency in a bar plot.
  • EDA: R program to visualize mean length duration of films over the year using Netflix database.
• Testing programs
  • Measure: Exercice to manipulate 'testthat' package to UnitTest the str_length function
  • Believe: Unittest project to test a code generated by LLM.
• Packaging programs
• Capstone: Capstone project: Build of a R package handling chemicals data.