Rolling minimum
The zoo
package has several rolling window functions for common summary statistics like mean, median, sum, etc. However, not all statistics have a rolling function, so an important skill is to be able to apply any given function to a rolling window!
In this exercise, you'll apply a function to a rolling window generated from the daily_temp
time series.
This exercise is part of the course
Manipulating Time Series Data in R
Exercise instructions
- Create a
30
-day,right
-aligned rolling minimum of thedaily_temp
time series and assign it totemp_roll_min
.
Hands-on interactive exercise
Have a go at this exercise by completing this sample code.
# Create the rolling minimum from daily_temp
temp_roll_min <- rollapply(___)
autoplot(___) +
theme_light() +
labs(y = 'Degrees Celsius')