I hope this is the appropriate list for this type of question
Consider the dataset below:I have a column DOC with values from 3 to 101and
those are the values that I want to show on my x axis, howeverI only get 3,
3.1, 3.2 and so on. I tried to change those values with xlim(3, 101) but I
getthe following error:Error in unit(x, default.units) : 'x' and 'units' must
have length > 0
question: Which argument is needed in the ts() call to make the x axis
showbreaks every 7 days starting with 3?
wt <- structure(list(DOC = c(3, 10, 17, 24, 31, 38, 45, 52, 59, 66, 73, 80, 87,
94, 101), AvgWeight = c(1, 1.66666666666667, 2.06666666666667, 2.275,
3.83333333333333, 6.2, 7.4, 8.5, 10.25, 11.1, 13.625, 15.2, 16.375, 17.8,
21.5), PondName = structure(c(1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L,
1L, 1L, 1L), .Label = "Pond01", class = "factor"), SampleDate =
structure(c(1182585600, 1183190400, 1183795200, 1184400000, 1185004800,
1185609600, 1186214400, 1186819200, 1187424000, 1188028800, 1188633600,
1189238400, 1189843200, 1190448000, 1191052800), class = c("POSIXct",
"POSIXt"))), .Names = c("DOC", "AvgWeight", "PondName", "SampleDate"),
row.names = c(NA, 15L), class = "data.frame")
wt$SampleDate <- as.Date(wt$SampleDate) wt
library(forecast)library(ggplot2)pond <-
ts(wt$AvgWeight,start=3,frequency=52)pond d.arima <- auto.arima(pond)d.forecast
<- forecast(d.arima, level = c(95), h = 3)d.forecast
autoplot(d.forecast) + xlim(7, 101)Error in unit(x, default.units) : 'x' and
'units' must have length > 0
Take a look at the attached plot
______________________________________________
R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
