[R] plot.POSIXct plot.POSIXlt

[Patrick Giraudoux]

Hi Spencer,

Sorry not to have thought about a self contained example. One can make:

dur <-
c(17, 6, 12, 20, 24, 8, 16, 12, 8, 8, 9, 9, 13, 24, 14, 15, 10,
13, 14, 21, 14, 12, 10, 17, 11, 10, 14, 15, 13, 11, 14, 10, 12,
16, 10)

DP <-
structure(c(1144360800, 1145656800, 1143583200, 1144360800, 1145052000,
1143496800, 1144274400, 1144620000, 1143669600, 1147039200, 1146607200,
1143583200, 1143327600, 1144965600, 1144015200, 1144274400, 1144360800,
1144015200, 1144101600, 1144792800, 1144274400, 1144447200, 1144447200,
1144533600, 1144360800, 1143842400, 1143928800, 1144533600, 1143928800,
1143928800, 1144188000, 1143928800, 1144015200, 1144447200, 1143842400
), class = c("POSIXt", "POSIXct"), tzone = "")

plot(dur~DP, format="%d %b")

I will follow your hint further.

Thanks a lot for your kind concern,

All the best,

Patrick



Spencer Graves a écrit :
>      Your example is not self contained, and I was unable to generate 
> an example that produced the warning messages you've mentioned.
>      Have you tried 'options(warn=2)', then running your example?  
> This will turn the warning into an error.  Then you might be able to 
> get something from 'traceback'.  I also encourage you to experiment 
> with 'debug'.  I've discussed how to do this in previous posts.  
> 'RSiteSearch("debug spencer")' produced 124 hits for me just now.  
> Number 7 on that list looked like it might help you:  
> "http://finzi.psych.upenn.edu/R/Rhelp02a/archive/79251.html".
>      Hope this helps.      Spencer Graves
>
> Patrick Giraudoux wrote:
>> Hi,
>>
>> Just to signal that when I want to plot POSIXct variable on x using 
>> format within plot(), I get what I want on the plot but with a number 
>> of warnings:
>>
>>  > plot(y~x,format="%y-%m")
>> Warning messages:
>> 1: "format" is not a graphical parameter in: plot.window(xlim, ylim, 
>> log, asp, ...)
>> 2: "format" is not a graphical parameter in: plot.xy(xy, type, pch, 
>> lty, col, bg, cex, lwd, ...)
>> 3: "format" is not a graphical parameter in: axis(side, at, labels, 
>> tick, line, pos, outer, font, lty, lwd, 4: "format" is not a 
>> graphical parameter in: box(which = which, lty = lty, ...)
>> 5: "format" is not a graphical parameter in: title(main, sub, xlab, 
>> ylab, line, outer, ...)
>>
>> I suppose that format may not be at the right place in plot() or/and 
>> not handled by the functions called from there, however the 
>> documentation (?plot.POSIXct) seems to allow passing this argument:
>>
>>  ...: Further arguments to be passed from or to other methods,
>>           typically graphical parameters or arguments of
>>           'plot.default'.  For the 'plot' methods, also 'format'.
>>
>> Any comment?
>>
>> Patrick
>>
>> ______________________________________________
>> R-help at stat.math.ethz.ch 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.
>>   
>
>
>