[R] time series - month value

Alfredo Alessandrini alfreale74 at gmail.com
Tue Dec 1 17:43:23 CET 2009


Hi,

I've this time series:

> ts_evi
Time Series:
Start = c(2000, 4)
End = c(2002, 7)
Frequency = 23
 [1] 0.1948306 0.1930461 0.1905792 0.1848909 0.1893624 0.1811400 0.1678140
 [8] 0.1750714 0.3100132 0.3495946 0.4103353 0.4973740 0.4937490 0.4031435
[15] 0.3503787 0.2755022 0.2304617 0.2284854 0.2166127 0.2046744 0.2002691
[22] 0.1935237 0.1782539 0.1827050 0.1771288 0.1736177 0.1674035 0.1673382
[29] 0.1676010 0.1735880 0.1734465 0.2634710 0.2833674 0.3706685 0.4634188
[36] 0.4815648 0.4274418 0.3676624 0.2849945 0.2311094 0.2145767 0.2134797
[43] 0.2021141 0.1960431 0.1894779 0.1854458 0.1768988 0.1755865 0.1697464
[50] 0.1735197
> cycle(ts_evi)
Time Series:
Start = c(2000, 4)
End = c(2002, 7)
Frequency = 23
 [1]  4  5  6  7  8  9 10 11 12 13 14 15 16 17 18 19 20 21 22 23  1  2  3  4  5
[26]  6  7  8  9 10 11 12 13 14 15 16 17 18 19 20 21 22 23  1  2  3  4  5  6  7



What's the better method for obtain monthly value?


Thanks,

Alfredo




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