What Is the MATLAB Search PathThe search path, or path
is a subset of all the folders in the file system. MATLAB? software uses the
search path to efficiently locate files used with MathWorks? products. MATLAB
can access all files in the folders on the search path.
How MATLAB
Stores the Search Path
MATLAB saves the search path information in the pathdef.m file.
The pathdef.m file is a series of full path names, one for each folder on the
search path, separated by a semicolon (;).
By default, pathdef.m is
in $matlabroot/toolbox/local.
改变上下文中的search path:
Syntax：
path
path(‘newpath‘)
path(path,‘newpath‘)
path(‘newpath‘,path)
p = path
Description
path displays the MATLAB? search path, which is stored in
pathdef.m.
path(‘newpath‘) changes the search path to
newpath, where newpath is a string array of folders.
path(path,‘newpath‘) adds the newpath folder to the
end of the search path. If newpath is already on the search path, thenpath(path,
‘newpath‘) moves newpath to the end of the search path.
path(‘newpath‘,path) adds the newpath folder to the
top of the search path. If newpath is already on the search path,
thenpath(‘newpath‘, path) moves newpath to the top of the search path. To
add multiple folders in one statement, instead use addpath.
p = path returns the search path to string
variable p.
例子：
path(‘/opt/lampp/lib‘, path), 即是把/opt/lampp/lib加入到search
path的前面。
Specifying the Java Library
Path
Java classes can dynamically load native methods using the Java method
java.lang.System.loadLibrary("LibFile"). In order for the JVM software to locate
the specified library file, the directory containing it must be on the Java
Library Path. This path is established when MATLAB launches the JVM software at
startup, and is based on the contents of the file
$matlabroot/toolbox/local/librarypath.txt
(where $matlabroot is the MATLAB root directory represented by the MATLAB
keyword matlabroot).
You can augment the search path for native method libraries by editing the
librarypath.txt file. Follow these guidelines when editing this file:
Specify each new directory on a line by itself.
Specify only the directory names, not the names of the DLL
files. The LoadLibrary call does this for you.
To simplify the specification of directories in cross-platform
environments, you can use any of these macros: $matlabroot, $arch, and
$jre_home.
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改变matlab的
load library path:
第一种方法：改变library load path：
export
LD_LIBRARY_PATH=/opt/lampp/lib
若采用这种方法，需要建立一个可执行文件 /usr/local/bin/matlab，内容为：
#!/bin/bash
export LD_LIBRARY_PATH=${LD_LIBRARY_PATH}:/opt/lampp/lib
cd /opt/soft/matlab
# 这里不能采用后台执行的方式，不然matlab 不能启动, 也即不能加 &
./bin/matlab
