[R] Show name of dataset in graph

[Richard.Cotton at hsl.gov.uk]

> I?ve written a script to run several multivariate statistical analysis
> automatically.
> As one result a biplot and screeplot is produced.
> Now I?d like to display the name of the inputdatset as part of the title 
of
> these graphics and I do not want to enter it each time I run the script.
> How can I extract the name of a dataset?
> An (shortened) extraction from the script:
> 
> >Test1 <- function(pri, sec, Pca, Ca, Dca){
> >#pri  - primary Parameters (biological Dataset (abundances))
> >#sec ? secondary Parameters 
> >#Pca, Ca, Dca ? Default=F, If set to TRUE these Methods are active
> ?several mathematical Operations?
> >biplot(pri, pc.biplot=T, main=paste(?PCA - ?, ???)?.
> 
> Instead of the ??? I? d like to have a variable.
> For example if 
> Test1(dataset.typ5, sec.typ5, Pca=TRUE)
> then the title of the plots should be 
> ?PCA ? dataset.typ5?

This demonstrates the basic idea:

dfr1 <- data.frame(x=1:10, y=runif(10))
dfr2 <- data.frame(x=11:20, y=runif(10))

library(lattice)
myplot <- function(dfr)
{
   xyplot(y~x, 
   data=dfr, 
   main=as.character(substitute(dfr))) 
}

myplot(dfr1)
myplot(dfr2)

Regards,
Richie.

Mathematical Sciences Unit
HSL

------------------------------------------------------------------------
ATTENTION:

This message contains privileged and confidential inform...{{dropped:20}}