As an absolute beginner, still reading "Modern Applied Statistics with
S" and exercising with its examples, I'm frequently stopped by what it
looks to be R poor help system (or is it my gigantic ignorance?). I mean that
using help many arguments of a command seems to be given for granted like for
instance:
...............................
?lines
lines(x, ...)
## Default S3 method:
lines(x, y = NULL, type = "l", col = par("col"),
lty = par("lty"), ...)
Arguments:
x, y: coordinate vectors of points to join.
type: character indicating the type of plotting; actually any of
the 'type's as in 'plot'.
col: color to use. This can be vector of length greater than one,
but only the first value will be used.
lty: line type to use.
...: Further graphical parameters (see 'par') may also be supplied
as arguments, particularly, line type, 'lty' and line width,
'lwd'.
................................
How could I quickly know during an R-session what values should be
"col" set to have red, how could I set "lty" etc.?
Vittorio
Try help(par). Christian On Mon, 19 Jan 2004, v.demart at libero.it wrote:> As an absolute beginner, still reading "Modern Applied Statistics with S" and exercising with its examples, I'm frequently stopped by what it looks to be R poor help system (or is it my gigantic ignorance?). I mean that using help many arguments of a command seems to be given for granted like for instance: > ............................... > ?lines > lines(x, ...) > > ## Default S3 method: > lines(x, y = NULL, type = "l", col = par("col"), > lty = par("lty"), ...) > > Arguments: > > x, y: coordinate vectors of points to join. > > type: character indicating the type of plotting; actually any of > the 'type's as in 'plot'. > > col: color to use. This can be vector of length greater than one, > but only the first value will be used. > > lty: line type to use. > > ...: Further graphical parameters (see 'par') may also be supplied > as arguments, particularly, line type, 'lty' and line width, > 'lwd'. > ................................ > > How could I quickly know during an R-session what values should be "col" set to have red, how could I set "lty" etc.? > > Vittorio > > ______________________________________________ > R-help at stat.math.ethz.ch mailing list > https://www.stat.math.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html >*********************************************************************** Christian Hennig Fachbereich Mathematik-SPST/ZMS, Universitaet Hamburg hennig at math.uni-hamburg.de, http://www.math.uni-hamburg.de/home/hennig/ ####################################################################### ich empfehle www.boag-online.de
The R help is sublime - which can be lost on the beginner (it was on me). See Chapter 12 Graphical procedures of the introduction to R manual (http://cran.r-project.org/manuals.html). Then read the rest of the manual before bed. As for getting red and a solid line? plot(1:100, log(1:100), type = "l", col = "red", lty = "solid") Good luck, Andy
How about the following:
plot(1:11, col=1:11, cex=2, lwd=4)
plot(1:4, col=c("red","green",'blue',
'orange'), cex=2, lwd=4)
hope this helps. spencer graves
v.demart at libero.it wrote:
>As an absolute beginner, still reading "Modern Applied Statistics with
S" and exercising with its examples, I'm frequently stopped by what it
looks to be R poor help system (or is it my gigantic ignorance?). I mean that
using help many arguments of a command seems to be given for granted like for
instance:
>...............................
>?lines
> lines(x, ...)
>
> ## Default S3 method:
> lines(x, y = NULL, type = "l", col = par("col"),
> lty = par("lty"), ...)
>
>Arguments:
>
> x, y: coordinate vectors of points to join.
>
> type: character indicating the type of plotting; actually any of
> the 'type's as in 'plot'.
>
> col: color to use. This can be vector of length greater than one,
> but only the first value will be used.
>
> lty: line type to use.
>
> ...: Further graphical parameters (see 'par') may also be
supplied
> as arguments, particularly, line type, 'lty' and line
width,
> 'lwd'.
>................................
>
>How could I quickly know during an R-session what values should be
"col" set to have red, how could I set "lty" etc.?
>
>Vittorio
>
>______________________________________________
>R-help at stat.math.ethz.ch mailing list
>https://www.stat.math.ethz.ch/mailman/listinfo/r-help
>PLEASE do read the posting guide!
http://www.R-project.org/posting-guide.html
>
>
"v.demart at libero.it" <v.demart at libero.it> writes:> As an absolute beginner, still reading "Modern Applied Statistics with S" and exercising with its examples, I'm frequently stopped by what it looks to be R poor help system (or is it my gigantic ignorance?). I mean that using help many arguments of a command seems to be given for granted like for instance: > ............................... > ?lines > lines(x, ...) > > ## Default S3 method: > lines(x, y = NULL, type = "l", col = par("col"), > lty = par("lty"), ...) > > Arguments: > > x, y: coordinate vectors of points to join. > > type: character indicating the type of plotting; actually any of > the 'type's as in 'plot'. > > col: color to use. This can be vector of length greater than one, > but only the first value will be used. > > lty: line type to use. > > ...: Further graphical parameters (see 'par') may also be supplied > as arguments, particularly, line type, 'lty' and line width, > 'lwd'. > ................................ > > How could I quickly know during an R-session what values should be "col" set to have red, how could I set "lty" etc.?Well, you might take a hint and look at ?par, in which this is in fact explained. The above text is not saying that very explicitly, I agree. However, it could be a good idea if we found a nice way of integrating this sort of tabular material in the help system. The case that really annoys me is that to get at the va?ues for 'pch', you need to run example(points), which is both nonobvious and disruptive if you are in the middle of constructing a complex plot command. -- O__ ---- Peter Dalgaard Blegdamsvej 3 c/ /'_ --- Dept. of Biostatistics 2200 Cph. N (*) \(*) -- University of Copenhagen Denmark Ph: (+45) 35327918 ~~~~~~~~~~ - (p.dalgaard at biostat.ku.dk) FAX: (+45) 35327907