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...

etwa 7 Jahre ago | 0

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...

etwa 7 Jahre ago | 0

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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...

etwa 7 Jahre ago | 0

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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...

etwa 7 Jahre ago | 0

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...

etwa 7 Jahre ago | 0

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...

etwa 7 Jahre ago | 0

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...

mehr als 7 Jahre ago | 3

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)...

mehr als 7 Jahre ago | 1

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 ...

mehr als 7 Jahre ago | 0

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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); ...

mehr als 7 Jahre ago | 1

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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...

fast 8 Jahre ago | 0

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 ...

fast 8 Jahre ago | 0

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...

fast 8 Jahre ago | 1

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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...

fast 8 Jahre ago | 2

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

fast 8 Jahre ago | 1

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Efficient matri x calculation
data_new = ids(data);

fast 8 Jahre ago | 1

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

fast 8 Jahre ago | 0

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...

fast 8 Jahre ago | 0

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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...

fast 8 Jahre ago | 1

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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...

fast 8 Jahre ago | 2

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

fast 8 Jahre ago | 0

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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...

fast 8 Jahre ago | 0

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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...

fast 8 Jahre ago | 0

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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,...

fast 8 Jahre ago | 1

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

fast 8 Jahre ago | 4

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

fast 8 Jahre ago | 0

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

fast 8 Jahre ago | 2

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Help with the interpolate function

fast 8 Jahre ago | 0

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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.

fast 8 Jahre ago | 0

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