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how can set values to a const mxArray ?
Looks like you are talking about C/C++ code. If that is the case, I am confused. How could: char a = 'mystr' ever work? T...

casi 13 años hace | 0

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Why when i convert Cell2mat than to double the values changes ?
<https://www.mathworks.com/matlabcentral/answers/57444-faq-why-is-0-3-0-2-0-1-not-equal-to-zero>

casi 13 años hace | 1

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any one knows about this error ?
Q must be square with as many columns as G. You could use the debugger and see why the message given above occurs. Please lea...

casi 13 años hace | 0

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How to read a .f06 file in MATLAB ?
From the .f06 file description: This is the main Nastran output file. It contains the results of your analysis such as disp...

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fzero function, additional output needed
Is there anything preventing you from modifying _find_pw()_ to return p1 as well? function [F,p1]=find_pw(p,pw) Globals a...

casi 13 años hace | 0

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Error when m-file calls cpp-file
Are you using linux?

casi 13 años hace | 1

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Error when m-file calls cpp-file
You cannot call directly cpp files from Matlab. You need to use _mex_ to compile cpp file into a format that Matlab can understa...

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How to perform extreme value distribution in Matlab?
Hard to say without looking at the i) the formulas, ii) how the formulas are implemented in the code. It could be numerical pre...

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I want to create a string that contains 2767 letters (1000 times s). Is there any way to do that fast without typing 'sssss..' 2000 times? thank you
your_str = repmat('s',1,2767); Or your_str(1:2767)='s'; Amongst other options.

casi 13 años hace | 2

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find first value below a minimum in a vectorized way
Using only _min()_ and some logical indexing: A = [ 5,6,5,2,2,6; 7,6,4,4,2,4;9,5,4,2,4,2;7,6,5,5,4,3;5,6,8,7,8,9] thres...

casi 13 años hace | 1

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Unique Rows in Cell Array
my_unik = cellfun(@(x) unique(x,'rows'),a,'uniformoutput',false); Or what is it you want?

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Remove rows or cols whose elements are all NaN
your_mat = A(all(isnan(A),2),:);

casi 13 años hace | 0

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Trying to write a script that solves a series
A few problems, mostly regarding numerics # A factorial can only be represented accurately in double precision up to 21. Same...

alrededor de 13 años hace | 0

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Problem with isinteger() - how to determine whether a constant is integer?
a == floor(a)

alrededor de 13 años hace | 2

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Plotting asymptotic limits, interpolation
Let Matlab decide how to make your plot look smooth: myFun = @(x) ppval(cs,x) fplot(myFun,[0.5 1])

alrededor de 13 años hace | 0

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find a vector in a big vector
vals = (2:2:20)'; your_mat = cell2mat(arrayfun(@(x) {find(a==x)},vals,'uniformoutput',false)); And if you don't care abo...

alrededor de 13 años hace | 0

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Format of exponential with num2str
You could create your own custom function <http://www.mathworks.com/matlabcentral/answers/62708-custom-output-of-the-fprintf...

alrededor de 13 años hace | 0

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write data to a .txt file
Filling with NaN, when there are no values: A = rand(10,1); B = rand(15,1); nRows = max([numel(A) numel(B)]); ...

alrededor de 13 años hace | 0

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Use interp1 to interpolate a matrix row-wise
Without a loop, but slower: nRows = size(E,1); your_array = cell2mat(arrayfun(@(x) {interp1(E(x, :), C(x, :), 0, 'linear...

alrededor de 13 años hace | 0

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how to create a matrix from existing matrix
a = [0.25 0.20 0.15 0.20 0.1]; your_mat = cell2mat(arrayfun(@(x,y) ((x:x:1)'+y)',a,0:numel(a)-1,'uniformoutput',false)); ...

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diffrence of vector element and addition element- wise
A=[1 2 3 98 99 102]; BB = [A(1) ( A(1:numel(A)-1) + diff(A) ).*5]

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How to change the transparency of bars in a barseries plot?
It seems to me that you are not passing the correct value for the handles of the patch: v1 = rand(81,1); c1 = [1 0 1];...

alrededor de 13 años hace | 1

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How to recnstruct a signal from given discrete values ?
I am not sure I understand the problem. It sounds to me that you need to find out the values of theta, omega and alpha. That is ...

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a simple substitution problem !
a = rand(10); [m n] = size(a); a(1:m+1:numel(a)) = 0.5;

alrededor de 13 años hace | 0

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Changing the axis property of matlab
h = plot(rand(10,1)); aH = ancestor(h,'axes'); x = get(h,'XData'); new_x = x .* 1000; new_y = get(h,'Ydata'); d...

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How FFT works on an image?
<http://homepages.inf.ed.ac.uk/rbf/HIPR2/fourier.htm Google does.>

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Importing hex values from a .txt or .xlsx file
doc sscanf You can use the '%x' identifier for hexadecimal data.

alrededor de 13 años hace | 0

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running mex 64bit on different matlab versions
Recompile using the source code.

alrededor de 13 años hace | 0

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add additional parameter to contour plot to generate 3d plot
What you are asking is basically how to plot four-dimensional data in a two dimensional plane. It is not easy, and tends to be m...

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Detect points in predefinied distnace in array
If you are only interested in the closest points and not the actual value of the distance itself, you could get rid of the expen...

alrededor de 13 años hace | 0