search for: paraexam

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2005 Feb 20
2
Ask for help on the parallel function output to a pdf file
...can output a parallel coordinate plot to the pdf file. library(lattice); pdf("trial.pdf"); data(iris); parallel(~iris[1:4] | Species, iris); dev.off(); However, if these commands are encapsulated into a function, the resultant pdf file is empty. For example, we define a simple function paraExam below, paraExam() may generate a pdf file which is empty from a pdf viewer. paraExam<-function(file="trial.pdf"){ library(lattice); pdf(file); data(iris); parallel(~iris[1:4] | Species, iris); dev.off(); } Please give me some tips to output parallel coordinate plots t...