R

You can use the following syntax to group data by hour and perform some aggregation in R: library(dplyr) library(lubridate) #group by hours…

There are three common ways to create a vector of zeros in R: Method 1: Use numeric() #create vector of 12 zeros…

You can use the following methods to count the number of unique values in a column of a data frame in R:…

Often you may want to plot a table along with a chart in R. Fortunately this is easy to do using functions…

You can use the microbenchmark package in R to compare the execution time of different expressions. You can use the following syntax…

You can use the mtext() function in R to write text in the margins of a plot. This function uses the following…

You can use the LETTERS constant in R to access letters from the alphabet. The following examples show the most common ways…

You can use the following basic syntax to draw an arrow in a plot in ggplot2: library(ggplot2) ggplot(df, aes(x=x, y=y)) + geom_point()…

There are two common ways to use the geom_bar() function in ggplot2 to create bar charts: Method 1: Use geom_bar() ggplot(df, aes(x))…

You can use the following methods to adjust the thickness of the lines in a boxplot in ggplot2: Method 1: Adjust Thickness…