See FAQ 7.22
On 27/08/2008, at 11:07 AM, John Sanabria wrote:
Hi, I have the following script: ---- t.R --- grafica <- function() { v <- read.csv('preprocessed/komolongma.ece.uprm.edu.active',sep=',') x <- as.ts(v$active) bitmap(file="output.png") densityplot(~x,col='blue',main='Density Plot') dev.off() } grafica() ---- t.R ---When I "sourced" it from R prompt, it quietly runs. However the "output.png" generated contains any visible data. I said that, because the file is created and it has 2062 bytes.--- execution --- > library(lattice) > source(file="t.R") > --- execution ---Now, if I sequentially run the lines above in the R prompt, the "output.png" file contains a graphical representation of the data.--- execution 2 ---- > v <- read.csv('preprocessed/komolongma.ece.uprm.edu.active',sep=',') > x <- as.ts(v$active) > bitmap(file="output.png") > densityplot(~x,col='blue',main='Density Plot') > dev.off() ---- execution 2 ---What is wrong with the densityplot function that produces any output when is invoked from a script?Someone has a script invoking the densityplot function?
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