Hi, Tested with the latest r-devel snapshot build for Windows (2009-05-28 r48663):
> png("test.png") Error in png("test.png") : invalid value of 'fillOddEven' The png() function is defined like this: > png function (filename = "Rplot%03d.png", width = 480, height = 480, units = "px", pointsize = 12, bg = "white", res = NA, restoreConsole = TRUE) { if (!checkIntFormat(filename)) stop("invalid 'filename'") filename <- path.expand(filename) units <- match.arg(units, c("in", "px", "cm", "mm")) if (units != "px" && is.na(res)) stop("'res' must be specified unless 'units = \"px\"'") height <- switch(units, `in` = res, cm = res/2.54, mm = res/25.4, px = 1) * height width <- switch(units, `in` = res, cm = res/2.54, mm = 1/25.4, px = 1) * width invisible(.External(Cdevga, paste("png:", filename, sep = ""), width, height, pointsize, FALSE, 1L, NA_real_, NA_real_, bg, 1, as.integer(res), NA_integer_, FALSE, .PSenv, NA, restoreConsole, "", FALSE)) } Note that the call to .External has 19 arguments, the last 2 of them being "" and FALSE but the devga() function defined in src/library/grDevices/src/init.c expects 1 more argument (19 + the entry point name), the last 3 of them being expected to be string (title), logical (clickToConfirm), and logical (fillOddEven). So it seems like the recently added 'fillOddEven' argument (r48294) is omitted in the .External call, hence the error. > sessionInfo() R version 2.10.0 Under development (unstable) (2009-05-28 r48663) i386-pc-mingw32 locale: [1] LC_COLLATE=English_United States.1252 [2] LC_CTYPE=English_United States.1252 [3] LC_MONETARY=English_United States.1252 [4] LC_NUMERIC=C [5] LC_TIME=English_United States.1252 attached base packages: [1] stats graphics grDevices utils datasets methods base Cheers, H. -- Hervé Pagès Program in Computational Biology Division of Public Health Sciences Fred Hutchinson Cancer Research Center 1100 Fairview Ave. N, M2-B876 P.O. Box 19024 Seattle, WA 98109-1024 E-mail: hpa...@fhcrc.org Phone: (206) 667-5791 Fax: (206) 667-1319 ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel