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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...

9 years 前 | 0

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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...

9 years 前 | 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...

9 years 前 | 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...

9 years 前 | 0

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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...

9 years 前 | 0

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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...

9 years 前 | 0

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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...

9 years 前 | 4

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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)...

9 years 前 | 1

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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 ...

9 years 前 | 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); ...

9 years 前 | 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...

10 years 前 | 0

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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 ...

10 years 前 | 0

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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...

10 years 前 | 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...

10 years 前 | 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;

10 years 前 | 1

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Efficient matri x calculation
data_new = ids(data);

10 years 前 | 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...

10 years 前 | 0

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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...

10 years 前 | 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...

10 years 前 | 1

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已回答
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...

10 years 前 | 2

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

10 years 前 | 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...

10 years 前 | 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...

10 years 前 | 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,...

10 years 前 | 1

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

10 years 前 | 4

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

10 years 前 | 0

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

10 years 前 | 2

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已回答
Help with the interpolate function
Use interp1 instead of interp

10 years 前 | 1

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已回答
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.

10 years 前 | 0

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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...

10 years 前 | 0

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