A straightforward tutorial in data wrangling with one of the most powerful R packages - dplyr.

What you'll learn

Filter data frames using various conditions
Select and remove data frame columns (variables)
Sort data frames by column values
Create new variables from the existing ones
Compute summary statistics for our data frame
Other useful operations (count data fame rows, select top rows, select rows at random etc.)
Chaining dplyr commands to write powerful data manipulation code
Joining data frames (five joining types)
Combining dplyr with ggplot2 to create meningful charts