Time series may contain large observations spanning many years. You may want to work on a specific portion of time series; for example, finding the sales for first 3 months, or sales for the last 3 months, or sales between 2007 to 2009, and so on. This section will explore various ways to get the required or desired data or subset from the time series.
You have completed the preceding recipes and should be familiar with the time series data now. You have my_series
time series ready from the previous recipe.
Perform the following steps in R:
> head(my_series) Output: Jan Feb Mar Apr May Jun 2011 2888 3894 3675 3113 3421 3870 > tail(my_series) Output: Jul Aug Sep Oct Nov Dec 2016 3203 3329 3854 3285 3800 2563 > tail(my_series, 20) Output: Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 2015 3881 3983 3813 3172 2667 3517 3445 2805...