load

Load instrument objects and variables into MATLAB workspace

Syntax

load filename
load filename obj1 obj2 ...
out = load('filename','obj1','obj2',...)

Arguments

filename

The MAT file name.

obj1 obj2 ...

Instrument objects or arrays of instrument objects.

out

A structure containing the specified instrument objects.

Description

load filename returns all variables from the MAT file specified by filename into the MATLAB® workspace.

load filename obj1 obj2 ... returns the instrument objects specified by obj1 obj2... from the MAT file filename into the MATLAB workspace.

out = load('filename','obj1','obj2',...) returns the specified instrument objects from the MAT file filename as a structure to out instead of directly loading them into the workspace. The field names in out match the names of the loaded instrument objects.

Examples

Suppose you create the GPIB objects g1 and g2, configure a few properties for g1, and connect both objects to their associated instruments.

g1 = gpib('ni',0,1);
g2 = gpib('ni',0,2);
set(g1,'EOSMode','read','EOSCharCode','CR')
fopen([g1 g2])

The read-only Status property is automatically configured to open.

g1.Status
ans = 
    open

g2.Status
ans = 
    open

Save g1 and g2 to the file MyObject.mat, and then load the objects into the MATLAB workspace.

save MyObject g1 g2
load MyObject g1 g2

Values for read-only properties are restored to their default values upon loading, while all other property values are honored.

get([g1 g2],{'EOSMode','EOSCharCode','Status'})
ans = 
    'read'     'CR'     'closed'
    'none'     'LF'     'closed'

Tips

Values for read-only properties are restored to their default values upon loading. For example, the Status property is restored to closed. To determine if a property is read-only, examine its reference pages or use the propinfo function.

Version History

Introduced before R2006a

See Also

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