% ECE 1250 S12 Lecture 5

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% Advanced Indexing, finish remaining topics.  (See handout on website.)
%-------------------------------------------------------------------------------

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% Writing script files.
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% Change directory to where script files are located so Matlab¨ can find them,
%  or use the Set Path command under the File menu to add the folder with
%  the script files to where Matlab¨ looks for commands.

% Use .m extension on file name.  Put in commands just as you would at the
%  >> prompt in the command window.  Here's a simple example of a script file
%  we shall call my_magic.m


% my_magic.m     Script to print a 3 x 3 magic square.
A = magic(3)
display('That''s a magic square!')
return


% To execute the script file my_magic.m, type the filename without the .m
>> my_magic
A =
     8     1     6
     3     5     7
     4     9     2
That's a magic square!

% Be careful not to create files with the same name as a Matlab¨ command.
% For example, say you create a file called plot.m.  When you use the plot
%  command, Matlab¨ will execute the first plot.m file it finds in the
%  search path.  If your plot.m was found first, you would no longer have
%  access to Matlab¨'s plot command.

% How to get rid of your plot.m command once it gets into Matlab¨ (and gets
%  compiled and stored in memory so the file is no longer accessed directly)?
% 1) Remove or rename your file.
% 2) Use the clear command to clear the filename, e.g., >> clear plot
% The next time you type "plot", Matlab¨ will go through the search path
%  again and find the correct file.

% Example script file to analyze students' test scores: see my_script.m