cd funtion

when you use cd funtion and the message you get is MCC use of cd funtion is problematic, what do you do?

[Laura Proctor]

Could you include the original code and error message?

MCC indicates that you are trying to use MATLAB Compiler. If that's the case, when you use CD, often you will want to use fully qualified path names when using CD.

Answer 1

[Laura Proctor]

From Loren Shure's Blog on Writing Deployable Code by guest-blogger Peter Webb:

Don't rely on the current directory (cd) or changes to the MATLAB path (addpath) to control the execution of M-files. The path of a deployed application is determined at compiled time, and remains forever fixed. The current directory is never on the path in a deployed application. In the code below, cd-ing to the stringFcns directory does not make stringFcns/add shadow mathFcns/add. The order of these functions at runtime depends on what their order was at compile time. This causes errors.

[Suzzie]

%script markfeatures.m

%for marking the eye and mouth positions in face images

%writes a file called labels.mat in which each row indexes an image and the

%columns are [x,y] position of the subjects eye (rigt and left) and the

%mouth.

imgdir = '/Users/suzzie/Desktop/FINAL CODE PROJECT 2011/FaceImages/';

destdir = '/Users/suzzie/Desktop/FINAL CODE PROJECT 2011/AlignFaceImages/';

cd(imgdir)

r = dir;

% get marks

marks = [];

for i = 3:(size(r,1))

t = r(i).name;

[X,map] = imread(t);

figure(1);

colormap gray;

if isfloat(X)

image(gray2ind(mat2gray((X))));

else

image(X);

end

title(t);

disp 'Click subject right eye, left eye, mouth'

[m,n] = ginput(3);

pos = round([m,n]);

pos = reshape(pos',1,6);

marks = [marks;pos]; %#ok<AGROW>

end

cd(destdir)

save labels marks r

[Suzzie]

this is the code

[Aurelien Queffurust]

From your example , avoiding the CD function is easy

dir accepts a directory as input argument:

r = dir(imgdir);

do the same with the save function and destdir folder