The XBRL package cannot locate an existing XSD with the following:
url <- "https://www.sec.gov/Archives/edgar/data/51143/000104746916010329/ibm-20151231.xml"
xbrl.vars <- xbrlDoAll(url, cache.dir = "XBRLcache", prefix.out = NULL, verbose = TRUE)
The error is:
Error in fileFromCache(file) :
Error in download.file(file, cached.file, method = "auto", quiet = !verbose) :
cannot download all files
In addition: Warning message:
In download.file(file, cached.file, method = "auto", quiet = !verbose) :
URL 'https://www.sec.gov/Archives/edgar/data/51143/000104746916010329/ibm-20151231.xsd': status was '404 Not Found'
The XSD exists however. I am running R 3.3.2 on OS X El Capitan.