Obviously, there’s nothing wrong with teaching yourself R and data science, enrolling in a few popular online courses and practicing here on R-exercises… But how about a real degree? The University of Illinois is offering an online Master degree in Computer Science / Data Science (MCS-DS). The program starts in January, and the application deadline […]

# Other

## Melt and Cast The Shape of Your Data-Frame: Solutions

Below are the solutions to these exercises on “Melt and Cast The Shape of Your Data-Frame.” #################### # # # Exercise 1 # # # #################### suppressMessages(library(data.table)) df <- data.frame( id = 1:2, q1 = c(“A”, “B”), q2 = c(“C”, “A”), stringsAsFactors = FALSE ) df ## id q1 q2 ## 1 1 A C […]

## Flexdashboard: Solutions

Below are the solutions to these exercises on “Data Visualization With Flexdashboard.” #################### # # # Exercise 1 # # # #################### rmarkdown::draft(“dashboard.Rmd”, template = “flex_dashboard”, package = “flexdashboard”) #################### # # # Exercise 2 # # # #################### — title: “Single Column (Fill)” output: flexdashboard::flex_dashboard: vertical_layout: fill — #################### # # # Exercise 3 […]

## Udemy Sale: All R Courses Just $10.99 Until Monday

Udemy offers huge course discounts once again. Until this Monday, you can sign up for any course for just $10.99. This is a huge discount given that the average Udemy R course is priced at $60. Prices normally vary from $20 to $200 (besides some free courses). For a full overview of all Udemy R […]

## Tidy Modeling: Solutions

Below are the solutions to these exercises on Tidy-verse ways of modeling. #################### # # # Exercise 1 # # # #################### library(tidyverse) library(modelr) summary(heights) ## income height weight age ## Min. : 0.0 Min. :52.0 Min. : 76.0 Min. :47.00 ## 1st Qu.: 165.5 1st Qu.:64.0 1st Qu.:157.0 1st Qu.:49.00 ## Median : 29589.5 […]

## Tidy Data Reading: Solutions

Below are the solutions to these exercises on “Tidy-verse Ways of Data Reading.” #################### # # # Exercise 1 # # # #################### library(tidyverse) list.files(readr_example(“”)) ## [1] “challenge.csv” “epa78.txt” “example.log” ## [4] “fwf-sample.txt” “massey-rating.txt” “mtcars.csv” ## [7] “mtcars.csv.bz2” “mtcars.csv.zip” #################### # # # Exercise 2 # # # #################### read_csv(readr_example(‘mtcars.csv’)) ## # A tibble: 32 […]

## Udemy Discounts: All Courses $15 (until Friday)

Until Friday, all courses offered by Udemy are on sale for just $15 (regular prices for their 63 R courses vary between $20 and $200). Udemy R courses are very popular: A course like R Programming A-Z™: R For Data Science With Real Exercises! has already been taken by >19,000 online students. Still, perhaps a […]

## Udemy Sale: All Courses $15 (until Fri 21 Dec)

Udemy offers huge course discounts again. Until Tuesday you can sign up for any course for just $15. This is a huge discount, given that the average Udemy R course is priced at ~$60, and prices vary from $20 to $200 (besides some free courses). For a full overview of all Udemy R courses, go […]

## Udemy Discounts: All Courses $15 (until Friday)

Until Friday, all courses offered by Udemy are on sale for just $15 (regular prices for their 63 R courses vary between $20 and $200). Udemy R courses are very popular: A course like R Programming A-Z™: R For Data Science With Real Exercises! has already been taken by >19,000 online students. Still, perhaps a […]

## Udemy Black Friday Indulgence Sale: All Courses $10 (until Tuesday)

Udemy offers huge course discounts again. Until Tuesday you can sign up for any course for just $10. This is a huge discount, given that the average Udemy R course is priced at ~$60, and prices vary from $20 to $200 (besides some free courses). For a full overview of all Udemy R courses, go […]