Applied Data Visualization with R and ggplot2

Creating a Histogram Using qplot and ggplot

In this section, we want to visualize the humidity distribution for the city of Vancouver. We'll create a histogram for humidity data using qplot and ggplot.

Let's begin by implementing the following steps:

1. Create a plot with RStudio by using the following command: qplot(df_hum$Vancouver):

2. Use ggplot to create the same plot using the following command:

ggplot(df_hum,aes(x=Vancouver))

This command does not do anything; ggplot2 requires the name of the object that we wish to make. To make a histogram, we have to specify the geom type (in other words, a histogram). aes stands for aesthetics, or ...