Comments and Ratings

Awesome!! Just what I was looking for.

What an amazing collection. Thank you so much for this!

Is there an available "answer guide" for the suggested exercises you have listed in the files? I am sadly already stuck on the second one and don't want to move on until I understand it

Michele,
You didn't give very much information. If you put a number greater than 170 WHERE? And what other parameters? Why don't you just email me? I put my email in the help for that purpose. If you email me, show me EXACTLY what you did, don't be vague.

In GUI_32, if i press the delete button(key), it does not delete the next character instead it will consider it as a character and adds to the existing string

sir
i tried it. This is an excellent work By U.......
Can u explain me How the Encoder and decoder Works.....
i just wanna knw Which method u r using and hw???? my e-mail id is tyagi.yogesh@rediffmail.com

These are really helpful. Thank you very much!

Hi Matt,
Woops, I thought the uimenu function was for the menu bar only.
Is it fair to assume then that if a gui is programmed without guide and you wish to add a menu bar, the property menubar is the only way to do it? Sorry for the general question but I have just been lucky enough to take on this rather large code which I think was not written in guide to start with (but it still has a .fig file).

Do you happen to have an example with a customised menubar gui that is programmed without using guide?

Like yourself I am very much inclined to program GUI's rather than using GUIDE.

Many thanks

Hi matt, great collection of gui examples, really useful!

I have 2007b and I tried running example 25 but no menu title appears, is this a compatibility problem?

One more question too being an absolute beginner here, how come no .fig file is generated when running the .m file code? i.e. in guide this is automatically generated?

Cheers

Cyberfrog

Tanguy,
You are correct. I didn't mention resizable GUIs because I make all of my own GUIs non-resizable. Is there something you have in mind in particular? If so email me with your suggestion, and I may include it in the next update. Thanks.

A stellar FEX contribution. Must read material
for any GUI developer.

Thanks someone,
BUG! I should be using listboxtop, not value. Thanks, I will update that too.
Also, the suggestions for added exercises are coming into my email. Keep them coming! Any other GUI suggestions are welcome, simple or complex.

I like the contents.m idea, and I might as well since a typo has already been found.

In the pdf I refer to a comment in GUI_30. I should have put GUI_32. File will be updated.

Does this not work for large arrays ??

>> nuc='ABCD';
>> clear('R');n=1;R=zeros(4^n,n);R=nuc(npermutek(1:n,n));
works.
>> clear('R');n=2;R=zeros(4^n,n);R=nuc(npermutek(1:n,n));
works.
>> clear('R');n=3;R=zeros(4^n,n);R=nuc(npermutek(1:n,n));
works.
>> clear('R');n=4;R=zeros(4^n,n);R=nuc(npermutek(1:n,n));
works.
>> clear('R');n=5;R=zeros(4^n,n);R=nuc(npermutek(1:n,n));
??? Index exceeds matrix dimensions.

------------------
I'm not entirely sure where the index is exceeding matrix dimensions.... if only matlab was more specific with error listings.
------------------
But maybe this is only happening on my machine... can someone try and let me know ???

Another reason I bypassed kron is illustrated here:

http://i217.photobucket.com/albums/cc229/spamanon/tester_output-2.png

Urs, I think you are correct about mentioning kron in the see also.

Hello Jos,

There are a couple of reasons I bypassed kron. The main reason is that expand, even with error checking etc., is faster on my machine(s):

A = reshape(randperm(24),6,4);
SZ = [300,400];
tic
T = expand(A,SZ);
toc %Elapsed time is 0.043622 seconds.
tic
T2 = kron(A,ones(SZ));
toc %Elapsed time is 0.082535 seconds.

For
A = reshape(randperm(144),18,8);
SZ = [300,400];
expand is .25 vs. .78 seconds for kron. 2007b win xp.

expand also works for your second example.
Thanks.

Very helpful for saving time.
Suggestions: you could also add options for grid color, box line width etc.

Siyi, Your code, as written, will work when there is one submatrix within A. However, it will need to be modified for multiple submatrices. Even without the modification, it is slower to use the approach you suggest. In the following, I made a copy of findsubmat, took out all of the NaN checking and the transposing of A, and put your code in the proper place. Here are some results:

A = round(rand(2000)*1);
B = [1 2;4 5];
A(30:31,60:61) = B; % Only one submatrix.

tic
C = findsubmat(A,B); % Elapsed time is 0.055974 seconds.
toc

tic
C = findsubmat_2(A,B); % Elapsed time is 0.502954 seconds.
toc

Also, this is really the kind of exchange that better takes place through email. Mine is listed in the help for findsubmat.
Feel free to email me about this code.
Thanks.

Matt: your code is well written but I really don't understand why use strfind to serch line by line. Compare it to these codes:

% Sorry I'm not used to use capital a,b;

idx = find(a(1:(ra*(ca-cb+1)-rb+1)) == b(1));
idx = idx(mod(idx-1,ra) <= ra-rb);

idc = bsxfun(@plus,0:ra:ra*(cb-1),(0:rb-1).');
c = 2;
d = b(c) == a(idx+idc(c));
while ~all(d)
    idx = idx(d);
    c = c+1;
    d = b(c) == a(idx+idc(c));
end

for general large matrices It seems that searching line by line usually results in overkill.

An update has been submitted which allows user to enter the set to be partitioned. For example: partitions(['a','b','c'])