将NA插入r中的时间序列对象

Question

i want to sum the months for all the years in a time series that looks like

         Jan Feb Mar Apr Jun Jul Aug Sep Oct Nov Dec
2006              4   4   3    4   4   5   5   3  3
2007      3   3   2   2   4    3   3   2   2   5  5
2008      3   3   3   2   2    4   4   3   

by using window(the time series object,start=c(2006,3),end=c(2008,3),frequency=1) this line gives you a new ts object with just march of 2006-2007. However this does not work when the month does not have any values in it, is there any way to replace the gaps with NA? I have seen questions like this before but the dont answer i think for a ts object.

Answer 1

Assuming that

the_time_series_object <- ts(1:31, frequency = 12, start = c(2006, 3))

then:

window(the time series object, start = c(2006,3), end = c(2008,3), frequency = 12)

Your frequency should be 12 instead of 1. There's no NA problem it's just that one variable that you have wrong