On Mon, 19 Sep 2011, Rich Shepard wrote:
On a related note, I'm reading the zoo help pages and vignettes but do not see the syntax for specifying which stream/parameter pair I want to plot. What do I read to learn how to do this?
I think that my reading answered this question, but now I need to refine the plots. If I run 'plot(z[, 1])' for example I get the stream/parameter pair in that is on the left of the top row. This leads to two refinement questions: 1) How can I get a list of the stream/parameter pairs and their position in the summary matrix? and, 2) How can I determine the earliest and latest dates in each stream/parameter pair in which there are data? According to the zoo.quickref vignette, start and end provide the earliest and last dates in the index, not necessarily for a specific stream/paramater pair. Once I have those dates I can specify start = as.Date("<start-date>") and end = as.Date("<end-date>"). Rich ______________________________________________ R-help@r-project.org mailing list 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.