[R] customizing the color and point shape for each line drawn using lattice's xyplot

[Gen]

Thank you for your suggestion. Unfortunately it does not appear to matter if
the data is subsetted before the xyplot command or within it.  The problem
remains. 

I was able to remove method 4 entirely from the key by using your suggestion
to subset the dataset “common,” and then creating a new variable to assign
labels for just this subset “common.without.Method4$method.not4.f”  The
resulting code was:

xyplot(MeanBxg ~ PercentVarExplained | bdg.f * bdx.f,
data=common.without.Method4, groups=method.not4.f, type="l",  auto.key=T)

This however leads to lack of continuity between plots, as when I exclude
methods 4 and 6 in my second plot, using the same approach, the color that
had corresponds to methods 7, 8 and 9 in plot one is automatically changed
in plot two.  The subsetting may work, so long as I can dictate line color
and symbol type in each plot. 



Ross Darnell wrote:
> 
> Does this help
> 
> common.without.Method4 <- subset(common, Method!=4)
> xyplot(MeanBxg ~ PercentVarExplained | bdg.f * bdx.f,
> data=common.without.Method4,
> groups=Method.f, type="l",  auto.key=T)
> 
> Ross Darnell
> 
> -----Original Message-----
> From: r-help-bounces at stat.math.ethz.ch
> [mailto:r-help-bounces at stat.math.ethz.ch] On Behalf Of Gen
> Sent: Thursday, 30 August 2007 2:51 PM
> To: r-help at stat.math.ethz.ch
> Subject: [R] customizing the color and point shape for each line drawn
> using lattice's xyplot
> 
> 
> Description of what I am trying to do:
> I am using the xyplot code below to plot the variable "MeanBxg" against
> the
> variable "PercentVarExplained" for all 9 possible combinations of
> variables
> "bdg" and "bdx".  Within each of these 9 scenarios I am plotting a
> separate
> line for each of up to 9 different methods that I used to estimate the
> variable MeanBxg. These methods are identified by the numeric variable
> called "Method."  Giving me one plot with 9 figures and each of the
> figures
> contains 9 lines. 
> 
> My problem arises because I would like to repeat the creation of this
> plot 8
> times, in each instance only a subset (eg 6) of the 9 methods are used
> (a
> different subset each time). 
> 
> What I can't figure out:
> I would like to learn how to specify the exact line color that
> corresponds
> to each method such that Method==1 will always be represented by the
> same
> color (in every plot that it appears in).  Where two methods that I used
> were of the same family of methods (say method==1 and method==2 made the
> same assumptions about the data)  I would like to, if possible,
> represent
> the two methods using the same color and distinguish them by the symbol
> used
> to represent points on the line. 
> 
> My code as it currently stands:
> xyplot(MeanBxg ~ PercentVarExplained | bdg.f * bdx.f, data=common,
> groups=common$Method.f, type="l", subset= Method!=4, auto.key=T)
> 
> As the code is, the default colors assigned are repeated causing
> different
> methods to be represented by the same color with no way to distinguish
> them
> (I have not succeeded in plotting lines and points simultaneously).  
> 
> Side question: When I subset the data to particular methods, is there a
> way
> to remove the excluded methods from the key as well? (in my code
> "Method" is
> a numeric variable, and "Method.f" corresponds to the lengthy
> descriptions
> of each method for the purpose of the key)
> 
> Thank you very much for your help. 
> Genevieve
> 
> 
> 
> -- 
> View this message in context:
> http://www.nabble.com/customizing-the-color-and-point-shape-for-each-lin
> e-drawn-using-lattice%27s-xyplot-tf4351934.html#a12400517
> Sent from the R help mailing list archive at Nabble.com.
> 
> ______________________________________________
> 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.
> 
> ______________________________________________
> 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.
> 
> 

-- 
View this message in context: http://www.nabble.com/customizing-the-color-and-point-shape-for-each-line-drawn-using-lattice%27s-xyplot-tf4351934.html#a12409939
Sent from the R help mailing list archive at Nabble.com.