Very Sorry for the oversight.
The dataset that I have used is:
Sunspots,Datefield
9.5,1/1/1900
2.7,1/1/1901
5,1/1/1902
24.4,1/1/1903
42,1/1/1904
63.5,1/1/1905
53.8,1/1/1906
62,1/1/1907
48.5,1/1/1908
43.9,1/1/1909
18.6,1/1/1910
5.7,1/1/1911
3.6,1/1/1912
1.4,1/1/1913
9.6,1/1/1914
47.4,1/1/1915
57.1,1/1/1916
103.9,1/1/1917
80.6,1/1/1918
63.6,1/1/1919
37.6,1/1/1920
26.1,1/1/1921
14.2,1/1/1922
5.8,1/1/1923
16.7,1/1/1924
44.3,1/1/1925
63.9,1/1/1926
69,1/1/1927
77.8,1/1/1928
64.9,1/1/1929
35.7,1/1/1930
21.2,1/1/1931
11.1,1/1/1932
5.7,1/1/1933
8.7,1/1/1934
36.1,1/1/1935
79.7,1/1/1936
114.4,1/1/1937
109.6,1/1/1938
88.8,1/1/1939
67.8,1/1/1940
47.5,1/1/1941
30.6,1/1/1942
16.3,1/1/1943
9.6,1/1/1944
33.2,1/1/1945
92.6,1/1/1946
151.6,1/1/1947
136.3,1/1/1948
134.7,1/1/1949
83.9,1/1/1950
69.4,1/1/1951
31.5,1/1/1952
13.9,1/1/1953
4.4,1/1/1954
38,1/1/1955
141.7,1/1/1956
190.2,1/1/1957
184.8,1/1/1958
159,1/1/1959
112.3,1/1/1960
53.9,1/1/1961
37.5,1/1/1962
27.9,1/1/1963
10.2,1/1/1964
15.1,1/1/1965
47,1/1/1966
93.8,1/1/1967
105.9,1/1/1968
105.5,1/1/1969
104.5,1/1/1970
66.6,1/1/1971
68.9,1/1/1972
38,1/1/1973
34.5,1/1/1974
15.5,1/1/1975
12.6,1/1/1976
27.5,1/1/1977
92.5,1/1/1978
155.4,1/1/1979
32.27,1/1/1980
54.25,1/1/1981
59.65,1/1/1982
63.62,1/1/1983
I convert the Datefield column to class Date, by using Datefield<-
as.Date(Datefield,format="%m/%d/%Y")
Then I create a time series object by using
dtxts<- xts(Sunspots,order.by = Datefield)
On using the ACF function
acf(dtxts,plot= TRUE,xaxt = "n",col="red",na.action = na.omit)
I get the error
Error in na.omit.ts(as.ts(x)) : time series contains internal NAs
The peculiar issue is that I do not get the above error on
- R 2.7 on Ubuntu in India
- R 2.8 on Windows in India
The error appears when I execute this code on an R 2.8 implementation
running on a Fedora machine in the USA.
Is it a problem with the locale?
Thanks for the help. Really appreciate it.
Harsh Singhal
Decisions Systems
Mu Sigma Inc.
Chicago, USA
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