[R] Help with creating a ts (time series) object with daily sampling values

Hi All, I have a data set of daily measurements of river flow. I would like to create a "ts" object from this data. Here's a sample data set: date <- as.Date(c(1:300), format="%Y") year=as.numeric(format(date, format = "%Y")) month=as.numeric(format(date, format = "%m")) julianday=

[R] Help with creating a ts (time series) object with daily sampling values

Hi All, I have a data set of daily measurements of river flow. I would like to create a “ts” object from this data. Here’s a sample data set: date <- as.Date(c(1:300), format="%Y") year=as.numeric(format(date, format = "%Y")) month=as.numeric(format(date, format = "%m")) juliand

[R] Help with plotting a line that is multicoloured based on levels of a factor

Hi All, I'm trying to plot data that is a time series of flows that are associated with a specific level, and I would like each level to represent a colour in a line plot. Here is some data that approximates what I'm using: date=c(1:300) flow=sin(2*pi/53*c(1:300)) levels=c(rep(c("

[R] Error using augPred with nlme grouped data

33 rows, data has 12 I'm guessing this has something to do with my grouping factor "name", since there are 12 levels (animals) in this column. The only help file I could find about this problem suggested that I give all of my data columns the class "NULL" and then re-run my

[R] Memory allocation problem with large dataset

Hello All, I have a problem when I try and run an nlme model with an added correlation structure on a large dataset. This is not surprising, but I am not sure how to fix this problem. I am using R 2.6.1, and I have had similar problems in S-plus. My dataset is mass growth data from the same 8