Dear readers, The problem is simple: I have weekly time series data with a maximum week number of (52,53,52,52) in (2008,2009,2010,2011) respectively. That means I have a dataset looking like this:
2008-01 value 2008-02 value . . 2011-52 value And I would like to turn that data into a plotable zoo object. Now a simple example containing 4 data points, each being on the December 28th, would be: x <- zoo(rnorm(4), as.Date("2008-12-28")+0:3*365) plot(x) This works fine, but y <- zoo(rnorm(4), format(as.Date("2008-12-28")+0:3*365, "%Y-%U")) plot(y) gives me the following warning message: Error in plot.window(...) : need finite 'xlim' values In addition: Warning messages: 1: In xy.coords(x, y, xlabel, ylabel, log) : NAs introduced by coercion 2: In min(x) : no non-missing arguments to min; returning Inf 3: In max(x) : no non-missing arguments to max; returning -Inf Anyone knows how to solve this? Best regards, Michael Green ______________________________________________ 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.