MATLAB Programming

4 M-File Programming
On the other hand, variables that contain strings do not need to be enclosed
in quotes:
dirname = 'myapptests';
mkdir(dirname)
Passing Filenames
You can specify a filename argument using the MATLAB command or function
syntax. For example, either of the following are acceptable. (The .mat file
extension is optional for save and load):
load mydata.mat
load('mydata.mat')
% Command syntax
% Function syntax
Ifyouassigntheoutputtoavariable,youmustusethefunctionsyntax:
savedData = load('mydata.mat')
Specify ASCII files as shown here. In this case, the file extension is required:
load mydata.dat -ascii
load('mydata.dat','-ascii')
% Command syntax
% Function syntax
Determining Filenames at Run-Time. There are several ways that your
function code can work on specific files without your having to hardcode their
filenames into the program. You can
• Passthefilenameasanargument:
function myfun(datafile)
• Prompt for the filename using the input function:
filename = input('Enter name of file:
', 's');
• Browse for the file using the uigetfile function:
[filename, pathname] = uigetfile('*.mat', 'Select MAT-file');
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