I'm currently running a time series script in R-Markdown where I pass the values of Percent Use and another vector of the time values. I am processing the two separate vectors with the regular c() function within r. The percentage vector is able to be passed through when compilining like normal, however I am running into trouble with the date/time vector. The length of both vectors are 749, the percentage vector just has values 0-100 passed within them. THe date/time vector has strings passed into them as such:
dt=c('2022-06-19 14:05:00.0','2022-06-19 14:06:00.0', ....
If I only pass a few arguments into the dt vector, it will compile regularly, however, once I increase the size to around half of what it needs to be I start getting the following error:
Error: Incomplete expression: dt=c('2022-06-19 12:40:00.0','2022-06-19 12:41:00.0','2022-06-19 12:42:00.0','2022-06-19 12:43:00.0','2022-06-19 12:44:00.0','2022-06-19 12:45:00.0','2022-06-19 12:46:00.0','2022-06-19 12:47:00.0','2022-06-19 12:48:00.0','2022-06-19 12:49:00.0','2022-06-19 12:50:00.0','2022-06-19 12:51:00.0','2022-06-19 12:52:00.0','2022-06-19 12:53:00.0','2022-06-19 12:54:00.0','2022-06-19 12:55:00.0','2022-06-19 12:56:00.0','2022-06-19 12:57:00.0','2022-06-19 12:58:00.0','2022-06-19 12:59:00.0','2022-06-19 13:00:00.0','2022-06-19 13:01:00.0','2022-06-19 13:02:00.0','2022-06-19 13:03:00.0','2022-06-19 13:04:00.0','2022-06-19 13:05:00.0','2022-06-19 13:06:00.0','2022-06-19 13:07:00.0','2022-06-19 13:08:00.0','2022-06-19 13:09:00.0','2022-06-19 13:10:00.0','2022-06-19 13:11:00.0','2022-06-19 13:12:00.0','2022-06-19 13:13:00.0','2022-06-19 13:14:00.0','2022-06-19 13:15:00.0','2022-06-19 13:16:00.0','2022-06-19 13:17:00.0','2022-06-19 13:18:00.0','2022-06-19 13:19:00.0','2022
At first I believed it could be a parenthesis in the wrong place, however, there is no mistakes with that. I've looked at other articles with somewhat similar issues and have seen a concept of a maximum size vector allowed, however the percentage vector was able to pass all 700. Is there a way to bypass this error, I feel that it is a memory/storage issue with R.
The full code is a lot but it is:
dt=c('2022-06-19 12:40:00.0','2022-06-19 12:41:00.0','2022-06-19 12:42:00.0','2022-06-19 12:43:00.0','2022-06-19 12:44:00.0','2022-06-19 12:45:00.0','2022-06-19 12:46:00.0','2022-06-19 12:47:00.0','2022-06-19 12:48:00.0','2022-06-19 12:49:00.0','2022-06-19 12:50:00.0','2022-06-19 12:51:00.0','2022-06-19 12:52:00.0','2022-06-19 12:53:00.0','2022-06-19 12:54:00.0','2022-06-19 12:55:00.0','2022-06-19 12:56:00.0','2022-06-19 12:57:00.0','2022-06-19 12:58:00.0','2022-06-19 12:59:00.0','2022-06-19 13:00:00.0','2022-06-19 13:01:00.0','2022-06-19 13:02:00.0','2022-06-19 13:03:00.0','2022-06-19 13:04:00.0','2022-06-19 13:05:00.0','2022-06-19 13:06:00.0','2022-06-19 13:07:00.0','2022-06-19 13:08:00.0','2022-06-19 13:09:00.0','2022-06-19 13:10:00.0','2022-06-19 13:11:00.0','2022-06-19 13:12:00.0','2022-06-19 13:13:00.0','2022-06-19 13:14:00.0','2022-06-19 13:15:00.0','2022-06-19 13:16:00.0','2022-06-19 13:17:00.0','2022-06-19 13:18:00.0','2022-06-19 13:19:00.0','2022-06-19 13:20:00.0','2022-06-19 13:21:00.0','2022-06-19 13:22:00.0','2022-06-19 13:23:00.0','2022-06-19 13:24:00.0','2022-06-19 13:25:00.0','2022-06-19 13:26:00.0','2022-06-19 13:27:00.0','2022-06-19 13:28:00.0','2022-06-19 13:29:00.0','2022-06-19 13:30:00.0','2022-06-19 13:31:00.0','2022-06-19 13:32:00.0','2022-06-19 13:33:00.0','2022-06-19 13:34:00.0','2022-06-19 13:35:00.0','2022-06-19 13:36:00.0','2022-06-19 13:37:00.0','2022-06-19 13:38:00.0','2022-06-19 13:39:00.0','2022-06-19 13:40:00.0','2022-06-19 13:41:00.0','2022-06-19 13:42:00.0','2022-06-19 13:43:00.0','2022-06-19 13:44:00.0','2022-06-19 13:45:00.0','2022-06-19 13:46:00.0','2022-06-19 13:47:00.0','2022-06-19 13:48:00.0','2022-06-19 13:49:00.0','2022-06-19 13:50:00.0','2022-06-19 13:51:00.0','2022-06-19 13:52:00.0','2022-06-19 13:53:00.0','2022-06-19 13:54:00.0','2022-06-19 13:55:00.0','2022-06-19 13:56:00.0','2022-06-19 13:57:00.0','2022-06-19 13:58:00.0','2022-06-19 13:59:00.0','2022-06-19 14:00:00.0','2022-06-19 14:01:00.0','2022-06-19 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22:55:00.0','2022-06-19 22:56:00.0','2022-06-19 22:57:00.0','2022-06-19 22:58:00.0','2022-06-19 22:59:00.0','2022-06-19 23:00:00.0','2022-06-19 23:01:00.0','2022-06-19 23:02:00.0','2022-06-19 23:03:00.0','2022-06-19 23:04:00.0','2022-06-19 23:05:00.0','2022-06-19 23:06:00.0','2022-06-19 23:07:00.0','2022-06-19 23:08:00.0','2022-06-19 23:09:00.0','2022-06-19 23:10:00.0','2022-06-19 23:11:00.0','2022-06-19 23:12:00.0','2022-06-19 23:13:00.0','2022-06-19 23:14:00.0','2022-06-19 23:15:00.0','2022-06-19 23:16:00.0','2022-06-19 23:17:00.0','2022-06-19 23:18:00.0','2022-06-19 23:19:00.0','2022-06-19 23:20:00.0','2022-06-19 23:21:00.0','2022-06-19 23:22:00.0','2022-06-19 23:23:00.')
I can understand saying there is a issue with the quotations, but I cant find it anywhere. It seems as there is a maximum allowed in a vector, if I compile only the first quarter of the entries it works, else wise on R studio it gives an error, and in the terminal it just expects more code so it gives you a + to add more instead of >.
I am running auto.arima for forecasting time series data and getting the following error:
1: The time series frequency has been rounded to support seasonal
differencing.
2: In value[3L] : The chosen test encountered
an error, so no seasonal differencing is selected. Check the time
series data.
This is what I am executing:
fit <- auto.arima(data,seasonal = TRUE, approximation = FALSE)
I have weekly time series data.
This is how dput(data) looks like:
structure(c(12911647L, 12618317L, 12827388L, 12967840L, 13264925L,
13557838L, 13701131L, 13812463L, 13971928L, 13837658L, 13550635L,
13022371L, 13507596L, 13456736L, 12992393L, 12831883L, 13262301L,
12831691L, 12808893L, 12726330L, 11893457L, 12434051L, 12363464L,
12077055L, 12107221L, 11986124L, 11997087L, 12264971L, 12164412L,
12438279L, 12733842L, 12543251L, 12627134L, 12480153L, 12276238L,
12443655L, 12497753L, 12279060L, 12549138L, 12308591L, 12416680L,
12516725L, 12326545L, 12772578L, 12524848L, 13429830L, 14188044L,
16611840L, 16476565L, 15659941L, 10785585L, 12150894L, 13436366L,
12985213L, 13097555L, 13204872L, 13786040L, 13760281L, 13295389L,
14734578L, 15043941L, 14821169L, 14361765L, 14300180L, 14357964L,
14271892L, 13248168L, 13813784L, 14092489L, 14100024L, 13378374L,
13225650L, 12582444L, 13267163L, 13026181L, 12747286L, 12707074L,
12534595L, 12546094L, 13030406L, 12950360L, 12814398L, 13405187L,
13277755L, 13142375L, 12742153L, 12610817L, 12267747L, 12570075L,
12704157L, 12835948L, 12851893L, 12978880L, 13104906L, 12754018L,
13213958L, 13584642L, 13963433L, 14471672L, 16312595L, 16630000L,
16443882L, 11555299L, 12018373L, 13031876L, 13013945L, 13164137L,
13313246L, 13652605L, 13803606L, 13308310L, 14466211L, 15092736L,
15346015L, 14467260L, 14767785L, 13914271L, 14185070L, 13851028L,
13605858L, 13597999L, 13876994L, 13026270L, 13113250L, 12288727L,
12925846L, 13525010L, 12594472L, 12654512L, 12888260L), .Tsp = c(2016.00819672131,
2018.48047598209, 52.1785714285714), class = "ts")
This is how I am reading data from the csv
read_data <- read.csv(file="data.csv", header=TRUE)
data_ts <- ts(read_data, freq=365.25/7, start=decimal_date(ymd("2016-1-4")))
data <- data_ts[, 2:2]
This is the data in the csv:
Year si_act
1/4/16 12911647
1/11/16 12618317
1/18/16 12827388
1/25/16 12967840
2/1/16 13264925
2/8/16 13557838
2/15/16 13701131
2/22/16 13812463
2/29/16 13971928
3/7/16 13837658
3/14/16 13550635
3/21/16 13022371
3/28/16 13507596
4/4/16 13456736
4/11/16 12992393
4/18/16 12831883
4/25/16 13262301
5/2/16 12831691
5/9/16 12808893
5/16/16 12726330
5/23/16 11893457
5/30/16 12434051
6/6/16 12363464
6/13/16 12077055
6/20/16 12107221
6/27/16 11986124
7/4/16 11997087
7/11/16 12264971
7/18/16 12164412
7/25/16 12438279
8/1/16 12733842
8/8/16 12543251
8/15/16 12627134
8/22/16 12480153
8/29/16 12276238
9/5/16 12443655
9/12/16 12497753
9/19/16 12279060
9/26/16 12549138
10/3/16 12308591
10/10/16 12416680
10/17/16 12516725
10/24/16 12326545
10/31/16 12772578
11/7/16 12524848
11/14/16 13429830
11/21/16 14188044
11/28/16 16611840
12/5/16 16476565
12/12/16 15659941
12/19/16 10785585
12/26/16 12150894
1/2/17 13436366
1/9/17 12985213
1/16/17 13097555
1/23/17 13204872
1/30/17 13786040
2/6/17 13760281
2/13/17 13295389
2/20/17 14734578
2/27/17 15043941
3/6/17 14821169
3/13/17 14361765
3/20/17 14300180
3/27/17 14357964
4/3/17 14271892
4/10/17 13248168
4/17/17 13813784
4/24/17 14092489
5/1/17 14100024
5/8/17 13378374
5/15/17 13225650
5/22/17 12582444
5/29/17 13267163
6/5/17 13026181
6/12/17 12747286
6/19/17 12707074
6/26/17 12534595
7/3/17 12546094
7/10/17 13030406
7/17/17 12950360
7/24/17 12814398
7/31/17 13405187
8/7/17 13277755
8/14/17 13142375
8/21/17 12742153
8/28/17 12610817
9/4/17 12267747
9/11/17 12570075
9/18/17 12704157
9/25/17 12835948
10/2/17 12851893
10/9/17 12978880
10/16/17 13104906
10/23/17 12754018
10/30/17 13213958
11/6/17 13584642
11/13/17 13963433
11/20/17 14471672
11/27/17 16312595
12/4/17 16630000
12/11/17 16443882
12/18/17 11555299
12/25/17 12018373
1/1/18 13031876
1/8/18 13013945
1/15/18 13164137
1/22/18 13313246
1/29/18 13652605
2/5/18 13803606
2/12/18 13308310
2/19/18 14466211
2/26/18 15092736
3/5/18 15346015
3/12/18 14467260
3/19/18 14767785
3/26/18 13914271
4/2/18 14185070
4/9/18 13851028
4/16/18 13605858
4/23/18 13597999
4/30/18 13876994
5/7/18 13026270
5/14/18 13113250
5/21/18 12288727
5/28/18 12925846
6/4/18 13525010
6/11/18 12594472
6/18/18 12654512
6/25/18 12888260
I was able to read the data without any errors before, initially, I had 160 records & the model does not throw any error but, then for 80-20 test I removed the last 30 records and this error cropped up. Now also, if I run with all the data I don't get any error but is I run it with first 130 as 80% I get this error.
when using auto.arima with seasonal = TRUE the parameter S is not calibrated but taken from the frequency of the ts object you are providing. So in your case S = 52.17.
In case the frequency of the time series is not and integer, S is rounded to next integer so auto.arima takes S = 52.
With S=52 and a data of length 150 it becomes difficult to calibrate a seasonal arima model: e.g if P = 2 and and all other variables are zero the first 104 observations cannot be used. I guess that is what the warning is about. You are being told that the seasonal component cannot be calibrated due to the large coefficient S (or due to your short data).
So either you get a longer data history, or you aggregate your data to monthly data (such that S = 12).