Answered
Toggle button background color unable to change
I would first check if you are able to change the color of the togglebutton manually, e.g. h = uicontrol('style','togglebutt...

bijna 9 jaar ago | 0

Answered
Matlab GUI and slow execution
not much we can do without seeing the code, but as you suggest one possible reason for the slowing down could be if the number o...

bijna 9 jaar ago | 0

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Answered
Calling some MATLAB function with suppressed outputs
Unfortunatley there is not (as far as I know; see for example <http://www.mathworks.com/matlabcentral/newsreader/view_thread/156...

bijna 9 jaar ago | 0

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Answered
Hierarchical clustering with only merging neighbouring clusters
I would suggest to request the code from the authors (Thirion et al.? if so, you can start here <https://github.com/bthirion/fro...

bijna 9 jaar ago | 0

Answered
what is the fastest way to do many univariate regression? same Y against different x, one x at a time
Not terribly different in practice, but if you want you could compute all of those regressions simultaneously using a sparse blo...

bijna 9 jaar ago | 0

Answered
Matlab code problem (calculate eigenvalues and eigenvectors)
In your example the matrix A is not <https://en.wikipedia.org/wiki/Normal_matrix normal> (check that A*A'-A'*A is not zero), hen...

bijna 9 jaar ago | 0

Answered
How to perform skull stripping using matlab?
Assuming that you do not have simply that slice but the entire MRI scan (e.g. a filename.nii or filename.img file) I would sugge...

ongeveer 9 jaar ago | 4

Answered
Random zero-restrictions in vector
B1 = B; i = randperm(numel(B)); c = sparse(find(B(i)),nonzeros(B(i)),1); B1(i(~any(c&cumsum(c,1)>repmat(A,size(c,1),1)...

meer dan 9 jaar ago | 1

Answered
Combine convolution filters (bandpass) into a single kernel
Convolution is a linear operation so yes, you can combine the two filtering operations into one. Just make the filters the same ...

meer dan 9 jaar ago | 0

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Answered
Substituting a number for NaN in anonymous function
There may be "cleaner" ways to do this but one possibility would be: g = @(x) [f(x) 1]*sparse(1+isnan(f(x)),1,1,2,1); ...

meer dan 9 jaar ago | 1

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Answered
evalin in caller a command that assigns in caller
There is no viable work-around for nested evalins, but your particular example does not really require them. You could for examp...

bijna 10 jaar ago | 0

Answered
Why is drawnow ignoring object ordering during animation?
You may use plot3(x, y, z,...) and text(x, y, z,...) and control the relative front/behind positions of these elements with the ...

bijna 10 jaar ago | 0

Answered
ind2sub doesn't work
You are funny. _ind2sub_ reshapes the _siz_ first argument to match the number of output variables used (in your case a singl...

bijna 10 jaar ago | 1

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Answered
eig versus svd functions?
SVD is a decomposition for arbitrary-size matrices, while EIG applies only to square matrices. They are very much related: Th...

bijna 10 jaar ago | 2

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Answered
How can i create a vector with specific values at different positions?
close enough: v([3:7 10:14 16:18 20:25]) = 1;

bijna 10 jaar ago | 1

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Answered
Efficient matri x calculation
data_new = ids(data);

bijna 10 jaar ago | 1

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scatter plotting color coded
perhaps something along these lines: % your data (assuming column vectors) lat = convn(randn(1e3,1),hanning(100)); l...

bijna 10 jaar ago | 0

Answered
Splitting a vector into vectors of different length
This is interesting, perhaps something like this would do (this implements a greedy correction of your initial estimate of the d...

bijna 10 jaar ago | 0

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Answered
picking a random solution to linear equations
I like your _Matlab can do anything_ remark. The _evenly space_ condition is a bit hard to achieve, but here some thoughts anywa...

bijna 10 jaar ago | 1

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Answered
GUI push button problem
You simply need to add the line: drawnow; to the code running the simulation steps so that Matlab flushes the event queue...

bijna 10 jaar ago | 2

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Answered
regexp and string rearrange in text file
something along these lines: % reads file into cell array lines = textread('lsit2.txt','%s','delimiter','\n','whitespace...

bijna 10 jaar ago | 0

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Answered
How to run m-file from another m-file by input string
try this: ... fclose(f); rehash; run(save_name); also make sure that your variable _save_name_ does not include the...

bijna 10 jaar ago | 0

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Answered
Inserting NaN in particular spots of my matrix, all while "preserving" or shifting all other numbers
If I am interpreting correctly (not really sure if this is what you mean by "shifted down") this should do: c = nan(size(a...

bijna 10 jaar ago | 0

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Answered
Regarding Mutual information calculation of two binary strings
When computing mutual information you may assume that 0*log(0) == 0. In your code you could remove all the "if XXX==0" checks,...

bijna 10 jaar ago | 1

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Answered
corrcoef : p value interpretation
There are several issues here: *1) regarding why you are getting not significant values in your example:* N = 1000; X =...

bijna 10 jaar ago | 4

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Answered
How to read files' names efficiently
Something like: files = dir; % Your list of files [~,filenames] = cellfun(@fileparts,{files.name},'uni',0); % Your list ...

bijna 10 jaar ago | 0

Answered
Updating handles from within Position Changed Callback
Your figure might have a resizefcn callback that could be reverting those values. Check: get(gcf,'resizefcn');

bijna 10 jaar ago | 2

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Answered
Help with the interpolate function
Use interp1 instead of interp

bijna 10 jaar ago | 1

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Answered
Quadratic time detrending. Any help or code ???
Yes, that should work, you just need to define: Ynew = Y - Th; to get the new "detrended" timeseries.

bijna 10 jaar ago | 0

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Answered
Turn my (easy) for loop into a recursive function?
You almost got it. Your are just: 1) overwriting the variable N, which you probably did not intend; and 2) including an unnecess...

bijna 10 jaar ago | 0

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