A named logical vector. Current components are
jpeg |
Is the jpeg function operational? |
png |
Is the png function operational? |
tiff |
Is the tiff function operational? |
tcltk |
Is the tcltk package operational?
|
X11 |
always FALSE on Windows. |
aqua |
FALSE except on Mac OS X. |
http/ftp |
Are url and the internal method for
download.file available? |
sockets |
Are make.socket and related functions
available? |
libxml |
Is there support for integrating libxml with
the R event loop? |
fifo |
are FIFO connections supported? |
cledit |
Is command-line editing available in the current R
session? This is false in non-interactive sessions.
|
iconv |
is internationalization conversion via
iconv supported? |
NLS |
is there Natural Language Support (for message translations)? |
profmem |
is there support for memory profiling? |
cairo |
applies to Unix-alikes – always FALSE . |