- •Version of matlab on different machines. It does not offer direct
- •In the workspace or file. You must use the functional form of who when
- •In a nested function, variables are grouped into those in the nested
- •If you run out of memory often, here are some additional system
- •If you do not specify filename, the load function searches for a file
- •If any data items require features that the specified version does not
- •Valid options for format are:
- •VirtualAddressSpace: [1x1 struct]
- •If the flag -inplace is used, the result is placed in the same
- •Inmem List functions in memory.
- •Variable names
- •Visible.
- •Is automatically run.
- •Is stored in a string.
- •Controlling the command window.
- •Vdspdebug/cd
- •Input parameters:
- •If the specified name cannot be found, an empty matrix is returned.
- •Idivide - Integer division with rounding option.
- •Interactive user input which cannot be provided.
- •Debugging.
- •If the matlabpath contains 'relative' directories then any file in those
- •Indicates who calls whom. Called_from is arranged so that
- •Information from the shrlib library file. Notfound is a cell array of
- •Invoked from the Swing Event Dispatch Thread.
If you run out of memory often, here are some additional system
specific tips:
Windows: Increase virtual memory using the control panel.
Unix: Ask your system manager to increase your Swap Space.
You should cd to a directory where you have "write" permission to execute
this command successfully. The following lines of code will help you
accomplish the consolidation of workspace memory.
cwd = pwd;
cd(tempdir);
pack
cd(cwd)
See also memory, save, load, clear.
Overloaded methods:
mpc/pack
Reference page in Help browser
doc pack
<load> - Load workspace variables from disk.
LOAD Load data from MAT-file into workspace.
S = LOAD(FILENAME) loads the variables from a MAT-file into a structure
array, or data from an ASCII file into a double-precision array.
S = LOAD(FILENAME, VARIABLES) loads only the specified variables from a
MAT-file. VARIABLES use one of the following forms:
VAR1, VAR2, ... Load the listed variables. Use the '*'
wildcard to match patterns. For
example, load('A*') loads all variables
that start with A.
'-regexp', EXPRESSIONS Load only the variables that match the
specified regular expressions. For more
information on regular expressions, type
"doc regexp" at the command prompt.
S = LOAD(FILENAME, '-mat', VARIABLES) forces LOAD to treat the file as
a MAT-file, regardless of the extension. Specifying VARIABLES is
optional.
S = LOAD(FILENAME, '-ascii') forces LOAD to treat the file as an ASCII
file, regardless of the extension.
LOAD(...) loads without combining MAT-file variables into a structure
array.
LOAD ... is the command form of the syntax, for convenient loading from
the command line. With command syntax, you do not need to enclose input
strings in single quotation marks. Separate inputs with spaces instead
of commas. Do not use command syntax if FILENAME is a variable.
Notes:
If you do not specify filename, the load function searches for a file
named matlab.mat.
ASCII files must contain a rectangular table of numbers, with an equal
number of elements in each row. The file delimiter (character between
each element in a row) can be a blank, comma, semicolon, or tab. The
file can contain MATLAB comments.
Examples:
gongStruct = load('gong.mat') % All variables
load('handel.mat', 'y') % Only variable y
load('accidents.mat', 'hwy*') % Variables starting with "hwy"
load('topo.mat', '-regexp', '\d') % Variables containing digits
% Using command form
load gong.mat
load topo.mat -regexp \d
load 'hypothetical file.mat' % Filename with spaces
See also save, whos, clear, regexp, importdata, uiimport, fileformats.
Overloaded methods:
COM/load
vdspdebug/load
eclipseide/load
ghsmulti/load
mdevproject/load
cgproject/load
ccsdebug/load
Reference page in Help browser
doc load
<save> - Save workspace variables to disk.
SAVE Save workspace variables to file.
SAVE(FILENAME) stores all variables from the current workspace in a
MATLAB formatted binary file (MAT-file) called FILENAME.
SAVE(FILENAME,VARIABLES) stores only the specified variables.
SAVE(FILENAME,'-struct',STRUCTNAME,FIELDNAMES) stores the fields of the
specified scalar structure as individual variables in the file. If you
include the optional FIELDNAMES, the SAVE function stores only the
specified fields of the structure. You cannot specify VARIABLES and
the '-struct' keyword in the same call to SAVE.
SAVE(FILENAME, ..., '-append') adds new variables to an existing file.
You can specify '-append' with additional inputs such as VARIABLES,
'-struct', FORMAT, or VERSION.
SAVE(FILENAME, ..., FORMAT) saves in the specified format: '-mat' or
'-ascii'.
You can specify FORMAT with additional inputs such as VARIABLES,
'-struct', '-append', or VERSION.
SAVE(FILENAME, ..., VERSION) saves to MAT-files in the specified
version: '-v4', '-v6', '-v7', or '-v7.3'.
You can specify VERSION with additional inputs such as VARIABLES,
'-struct', '-append', or FORMAT.
SAVE FILENAME ... is the command form of the syntax, for convenient
saving from the command line. With command syntax, you do not need to
enclose strings in single quotation marks. Separate inputs with spaces
instead of commas. Do not use command syntax if inputs such as
FILENAME are variables.
Inputs:
FILENAME: If you do not specify FILENAME, the SAVE function saves to a
file named matlab.mat. If FILENAME does not include an extension and
the value of format is '-mat' (the default), MATLAB appends .mat. If
filename does not include a full path, MATLAB saves in the current
folder. You must have permission to write to the file.
VARIABLES: Save only selected variables from the workspace.
Use one of the following forms:
V1, V2, ... Save the listed variables. Use the '*'
wildcard to match patterns. For example,
save('A*') saves all variables that start
with A.
'-regexp', EXPRESSIONS Save only the variables that match the
specified regular expressions. SAVE treats
all inputs as regular expressions except
the optional FILENAME and STRUCTNAME. The
FILENAME input must appear first. For
more information on regular expressions,
type "doc regexp" at the command prompt.
'-struct', STRUCTNAME, FIELDNAMES: Save the fields of a scalar
structure as individual variables in the file. FIELDNAMES is optional;
specify to save only selected fields. FIELDNAMES use the same forms as
VARIABLES.
'-append': Add data to an existing file. For MAT-files, '-append' adds
new variables to the file or replaces the saved values of existing
variables with values in the workspace. For ASCII files, '-append'
adds data to the end of the file.
FORMAT: Specify the format of the file, regardless of any specified
extension. Use one of the following combinations:
'-mat' Binary MAT-file format (default).
'-ascii' 8-digit ASCII format.
'-ascii', '-tabs' Tab-delimited 8-digit ASCII format.
'-ascii', '-double' 16-digit ASCII format.
'-ascii', '-double', '-tabs' Tab-delimited 16-digit ASCII format.
For ASCII file formats, the SAVE function has the following
limitations:
* Each variable must be a two-dimensional double or char array.
* MATLAB translates characters to their corresponding internal
ASCII codes. For example, 'abc' appears in an ASCII file as:
9.7000000e+001 9.8000000e+001 9.9000000e+001
* The output includes only the real component of complex numbers.
* If you plan to use the LOAD function to read the file, all
variables must have the same number of columns.
VERSION: Create a MAT-file that you can load into an earlier version of
MATLAB or that supports specific features. The following table shows
the available MAT-file version options and the corresponding supported
features.
| Can Load in |
Option | Versions | Supported Features
---------+--------------+----------------------------------------------
'-v7.3' | 7.3 or later | Version 7.0 features plus support for
| | data items greater than or equal to 2GB on
| | 64-bit systems
---------+--------------+----------------------------------------------
'-v7.0' | 7.0 or later | Version 6 features plus data compression and
| | Unicode character encoding
---------+--------------+----------------------------------------------
'-v6' | 5 or later | Version 4 features plus N-dimensional arrays,
| | cell and structure arrays, and variable names
| | greater than 19 characters
---------+--------------+----------------------------------------------
'v4' | all | Two-dimensional double, character, and
| | sparse arrays
