R Programming Fundamentals

Combining Data with rbind()

Herein, we will demonstrate the power of rbind() for combining data. In order to do so, the following steps need to be executed:

1. Install and load the ggplot2 package, as it contains the midwest dataset:

install.packages("ggplot2") library(ggplot2) 

2. Load the midwest data and examine its contents with str():

 data("midwest") str(midwest) 

3. We'll first need to split the data in order to combine it. Let's split it evenly, in half, to create midwest_1 and midwest_2. We can calculate directly in our subsetting method to get half of the number of rows of midwest in each dataset:

midwest1 <- midwest[1:round(nrow(midwest)/2),] midwest2 <- midwest[(round(nrow(midwest)/2)+1):nrow(midwest),]

4. Recombine midwest into