John Kane-2 wrote: > > # Can anyone suggest why this works > > datafilename <- > "http://personality-project.org/r/datasets/maps.mixx.epi.bfi.data"; > person.data <- read.table(datafilename,header=TRUE) > > # but this does not? > > dd <- > "https://sites.google.com/site/jrkrideau/home/general-stores/trees.txt"; > treedata <- read.table(dd, header=TRUE) > > =================================================================== > > Error in file(file, "rt") : cannot open the connection >
Your original file is no longer there, but when I try RCurl with a png file that is present, I get a certificate error: Dieter -------- library(RCurl) sessionInfo() dd <- "https://sites.google.com/site/jrkrideau/home/general-stores/history.png"; x = getBinaryURL(dd) ------------- > sessionInfo() R version 2.12.1 (2010-12-16) Platform: i386-pc-mingw32/i386 (32-bit) locale: [1] LC_COLLATE=German_Germany.1252 LC_CTYPE=German_Germany.1252 [3] LC_MONETARY=German_Germany.1252 LC_NUMERIC=C [5] LC_TIME=German_Germany.1252 attached base packages: [1] stats graphics grDevices datasets utils methods base other attached packages: [1] RCurl_1.5-0.1 bitops_1.0-4.1 loaded via a namespace (and not attached): [1] tools_2.12.1 > dd <- > "https://sites.google.com/site/jrkrideau/home/general-stores/history.png"; > x = getBinaryURL(dd) Error in curlPerform(curl = curl, .opts = opts, .encoding = .encoding) : SSL certificate problem, verify that the CA cert is OK. Details: error:14090086:SSL routines:SSL3_GET_SERVER_CERTIFICATE:certificate verify failed -- View this message in context: http://r.789695.n4.nabble.com/Accessing-data-via-url-tp3178094p3178773.html Sent from the R help mailing list archive at Nabble.com. ______________________________________________ R-help@r-project.org 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.
![https://sites.google.com/site/jrkrideau/home/general-stores/history.png"](https://sites.google.com/site/jrkrideau/home/general-stores/history.png"){kind=link}