monthly boxplot
On Aug 9, 2011, at 10:17 AM, Fernando Andreacci wrote:
It worked, thanks. Is there a way to put a trend line through the boxplots?
You have not shown us how you set the data up or made the boxplots. A "trend line through boxplots" seems be a bit ambiguous, since the x- variable needs to be a factor and a factor variable would not necessarily have either a scale or an order. So the answer with the available information cannot be anymore specific than "it depends".
David. > > > On Tue, Aug 9, 2011 at 10:58 AM, David Winsemius <dwinsemius at comcast.net > >wrote: > >> >> On Aug 9, 2011, at 9:46 AM, Fernando Andreacci wrote: >> >> I'm trying to make a monthly boxplot using this: >>> >>> boxplot(varmeasure ~ vardates) >>> >>> vardates = [1] 10/1/2010 10/1/2010 10/1/2010 10/1/2010 10/1/2010 >>> 10/1/2010 >>> 10/1/2010 >>> [8] 10/1/2010 10/1/2010 11/1/2010 11/1/2010 11/1/2010 11/1/2010 >>> 11/1/2010 >>> .... >>> >>> varmeasure = [1] 0.0 26.0 0.2 -0.2 -1.2 -0.8 0.0 4.4 >>> -0.6 >>> -0.2 14.4 -0.2 >>> [13] 4.8 4.0 2.8 3.2 3.8 3.2 -11.4 0.2 0.4 3.0 >>> 0.6 >>> 6.2 >>> .... >>> >>> >>> they have same size. >>> >>> >>> My problem is that R is ploting ordered by months and not by year >>> and by >>> months >>> >>> I'm getting 1/1/2011, 10/1/2010, 11/1/2010, 2/1/2011 >>> >>> How can I plot it in chronological order? >>> >> >> By converting those character strings to dates. At the moment you >> seem to >> believe that R has the ability to "know" that you want these >> strings to be >> dates. >> >> ?as.Date >> ?Dates >> >> -- >> >> David Winsemius, MD >> West Hartford, CT >> >> > > > -- > Fernando Andreacci > Bi?logo > Fone +55 47 9921 4015 > +55 41 9921 3934 > fandreacci at gmail.com > > [[alternative HTML version deleted]] > > ______________________________________________ > R-help at 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. David Winsemius, MD West Hartford, CT