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plot 2 curves with 'very close' y values
If you want to see the differences and at the same time keep values of your vectors, i would recommend something like this: ...

casi 14 años hace | 0

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How to count the amount of cells?
your_count = cellfun(@(x) numel(x),your_cell_array);

casi 14 años hace | 4

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How can I get MATLAB to leave a loop when any key is pressed?
This is a bit of a hack, and will probably slow down your code. The idea is to create a figure, and check whether a key has been...

casi 14 años hace | 1

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how to delete repated rows with out re order them
[~,idx]=unique(cell2mat(levelx),'rows','first'); unique_levelx = levelx(sort(idx),:);

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how to convert a vector to a number
a = randi(9,1,5); your_num = sscanf(sprintf('%d',a),'%d'); or alt_sol = sum(a.*repmat(10,1,numel(a)).^(numel(a)-1:-1:...

casi 14 años hace | 0

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How can I plot two vectors using the plotyy command, and after that plot two points with different y-scales on the same graph?
[AX,H1,H2] = plotyy(Va,la,Va,Pa); %handles to the axes will be in AX plot(AX(1),Va(mpp), Ia(mpp),'bo'); plot(AX(2),Va(mpp),...

casi 14 años hace | 0

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How to correct the assignment Error?
Try img_hist(i)= sum(sum(sum(im==(i-1)))); _im_ might be a three dimensional matrix.

casi 14 años hace | 1

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problem with manipulation a vector randomly
You could still use bsxfun, but instead of creating a vector of random numbers, if I understood correctly, you might need to cr...

casi 14 años hace | 0

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How to calculate the mean for specific rows in a cell using cellfun
It is not really clear how you want to split your data, so I added two variables, rowsFromStart and rowsFromEnd so you can speci...

casi 14 años hace | 0

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Problem in generation of random number
This will do what you ask, both row and column wise. It is not the most efficient thing out there, but at least it should give y...

casi 14 años hace | 0

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Complex numbers in matlab
To look how numbers are stored in .mat files you could look at the .mat file <http://www.mathworks.com/help/pdf_doc/matlab/matfi...

casi 14 años hace | 0

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What is the code?
doc gamrnd The skewness is a function of one of the two parameters of the distribution, that you can set as you see fit. You...

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Compiling C++ file to *.mex64 leads to "unresolved external symbol" (conversion from size_t to int most likely the reason"
From your error message, the program not working has nothing to do with the conversion from size_t to int. That in itself might ...

casi 14 años hace | 0

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data generation using bootstrap method
Bootstrapping consists in selecting a subset of the data. That sounds like a job for _randperm()_ a = randi(60,1,50); subs...

casi 14 años hace | 0

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Getting the algorithm behind the pos routine in matlab?
I will guess that you are talking about _symrcm()_. It is a built-in Matlab function. Here is what the documentation says: Th...

casi 14 años hace | 0

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Arrange a matrix with repeated rows
[idx idx] = sortrows(sort(a,2)); a = a(idx,:);

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How to reverse a number
A vectorized, faster alternative For integers: your_answer = flipud(sscanf(fliplr(sprintf('%d ',a)),'%d ')); And float...

casi 14 años hace | 0

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Matrix and vector multiplication elementwise
bsxfun(@times,a,h)

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Rolling max/min maximum and minimum
Without a toolbox: x = randi(10,1,100); n = 2; maxVec = arrayfun(@(a,b) max(x(a:b)),1:numel(x)-n+1,n:numel(x));

casi 14 años hace | 0

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License error or the function?
It looks like you are using a license server, and that all the licenses for the statistics toolbox are in use ( _ecdf()_ is a fu...

casi 14 años hace | 1

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reshape a matrix in a special manner
Faster: a = rand(100,130); [m n] = size(a); a = reshape(a,m,10,n/10); %Provided n is divisible by 10 your_mat = squeez...

casi 14 años hace | 0

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Can anyone explain this output?
It's just because of the way the data is formatted for display. doc format Set the same format in the two machines if you...

casi 14 años hace | 1

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Can we remove a bar from histogram which drawn using 'hist' function?
idx = your_data ~=0; You can now calculate the mean and standard deviation: your_mean = mean(data(idx)); your_std = me...

casi 14 años hace | 1

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How to extend the matrix size by splitting up a column in two columns
A= [10 2 0.0 6;... 10 2 18.0 6;... 10 2 1800.0 6;... 10 2 1810.0 6;... 10 2 2215.0 6]; Str = m...

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NaN and Infs popping in my matrices after a few iterations of EM algorithm
It sounds like you are running into numerical stability issues. Look at the following example, that might help you understand wh...

casi 14 años hace | 0

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Sorting variable names in alphabetical order
Looks like you might want to use _orderfields()_ a.b = 1; a.a = 2; a.m = 4; a.h = 5 a = b: 1 a: 2 ...

casi 14 años hace | 4

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find number of columns on text file
delimiter = ' '; %or whatever fid = fopen('myFile.txt','rt'); tLines = fgets(fid); numCols = numel(strfind(tLines,delimit...

casi 14 años hace | 7

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Using datenum on a cell array with different date formats
myDates = {'31.12.2009 23:58:31'; '25.12.2009'; '15.12.2009 15:18:10'}; idx = cellfun(@(x) isempty(regexp(x,':')),myDates); ...

casi 14 años hace | 0

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How can I make use of multiple cores in Matlab linear algebra
To give you a clear answer, it would be necessary to look at the source code, know what compiler the Mathworks used, what compil...

casi 14 años hace | 0

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Generating C/C+ code for the Optimization bintprog function
It is not supported, so there really is no solution, short of asking the Mathworks to support it. You could write it yourself, b...

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