Hi all,
I tired to run R shell command in an web PHP application. I always get an
error. I can run the same R command in terminal with no problem:
$ R --vanilla -q < R.cmd 1>R.output 2>R.log &
My system: Intel Dual-core Xeon wit Mac OS X 10.4.8
My R: 2.4.1
XAMPP is used.
This is the error in R.log file:
**********************
Error in dyn.load(x, as.logical(local), as.logical(now)) :
unable to load shared library
'/Library/Frameworks/R.framework/Resources/library/grDevices/libs/i386/grDev
ices.so':
dlopen(/Library/Frameworks/R.framework/Resources/library/grDevices/libs/i386
/grDevices.so, 6): Symbol not found: __cg_jpeg_save_markers
Referenced from:
/System/Library/Frameworks/ApplicationServices.framework/Versions/A/Framewor
ks/ImageIO.framework/Versions/A/ImageIO
Expected in: /Applications/xampp/xamppfiles/lib/libJPEG.dylib
Loading required package: grDevices
Error in dyn.load(x, as.logical(local), as.logical(now)) :
unable to load shared library
'/Library/Frameworks/R.framework/Resources/library/grDevices/libs/i386/grDev
ices.so':
dlopen(/Library/Frameworks/R.framework/Resources/library/grDevices/libs/i386
/grDevices.so, 6): Symbol not found: __cg_jpeg_save_markers
Referenced from:
/System/Library/Frameworks/ApplicationServices.framework/Versions/A/Framewor
ks/ImageIO.framework/Versions/A/ImageIO
Expected in: /Applications/xampp/xamppfiles/lib/libJPEG.dylib
In addition: Warning message:
package grDevices in options("defaultPackages") was not found
Error: package 'grDevices' could not be loaded
Execution halted
*********************
This is the PHP code:
***********************
<?php
$rpath = '/Applications/xampp/htdocs/test/';
$R_output = intval(shell_exec("R --vanilla -q < {$rpath}R.cmd
1>{$rpath}R.output 2>{$rpath}R.log & echo $!"));
echo "<pre>$R_output</pre>";
?>
*************************
Your help will be greatly appreciated.
Jack Zhu
E-mail: [EMAIL PROTECTED]
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