September 2018
Beginner to intermediate
140 pages
2h 52m
English
Content preview from Applied Data Visualization with R and ggplot2
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Creating a Line Chart
In this section, we'll create a line chart to plot the mean humidity against the month. Lets's begin by implementing the following steps:
- Convert the months into numerical integers, as follows:
df_hum$monthn <- as.numeric(df_hum$month)
- Group the humidity by month and remove NAs, as follows:
gp1 <- group_by(df_hum,monthn)
- Create a summary of the group using the mean and median.
- Now, use the geom_line() command to plot the line chart (refer to the code).
The following plots are obtained:
Refer to the complete code at https://goo.gl/tu7t4y.
Take a look at the output line chart:
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