[R] time series plots: labels language & tickmarks

[Gavin Simpson]

On Mon, 2005-08-22 at 13:04 +0100, Prof Brian Ripley wrote:
> On Mon, 22 Aug 2005, javier garcia - CEBAS wrote:
> 
> > My native language is spanish and I would need to do two changes in the
> > default xlabels in timeseries plots:
> 
> What sort of plots are you talking about here?  (Not tsplot or plot.ts, 
> for example.)  I think you are perhaps talking about plots of Dates.
> 
> > a) For timeseries that span more than one year, there are just xlabs and
> > tickmarks for the beginning of each year. Could I add extra tick marks for
> > each month easily?
> 
> See ?axis.Date, if this is about Dates.

If you want the ticks for months unlabelled, then axis.Date() in R v.
2.1.1 and 2.1.1-patched won't allow this. axis.Date() from R-devel
allows you to suppress the labelling of ticks - the change is trivial so
you could get the src of axis.Date for R-devel (e.g. it is here in the
subversion tree:

https://svn.r-project.org/R/trunk/src/library/graphics/R/datetime.R

and use that to create a my.axis.Date() and use this function explicitly
to add axes to your plot for the monthly ticks - until R 2.2.0 is
released anyway - using argument labels = FALSE to suppress the labels
for the monthly ticks.

HTH

G

> 
> > b) The xlabs appear in my language for months and days (spanish) but I need
> > them in English, how can I change this setting?
> 
> Use R in an English locale.  (If as the posting guide asked you have told 
> us your platform we could have told you how.  If you had shown us some 
> reproducible code we would not have had to guess as to what you want to 
> do.)
> 
-- 
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Gavin Simpson                     [T] +44 (0)20 7679 5522
ENSIS Research Fellow             [F] +44 (0)20 7679 7565
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