Answered
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...

13 years ago | 0

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Answered
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>

13 years ago | 1

Answered
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...

13 years ago | 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...

13 years ago | 0

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Answered
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...

13 years ago | 0

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

13 years ago | 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...

13 years ago | 1

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Answered
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...

13 years ago | 0

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Answered
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.

13 years ago | 2

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Answered
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...

13 years ago | 1

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

13 years ago | 1

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

13 years ago | 0

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Answered
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...

13 years ago | 0

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

13 years ago | 2

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

13 years ago | 0

Answered
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...

13 years ago | 0

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

13 years ago | 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)]); ...

13 years ago | 0

Answered
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...

13 years ago | 0

Answered
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)); ...

13 years ago | 0

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Answered
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]

13 years ago | 0

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Answered
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];...

13 years ago | 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 ...

13 years ago | 1

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

13 years ago | 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...

13 years ago | 2

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

13 years ago | 0

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

13 years ago | 0

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

13 years ago | 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...

13 years ago | 1

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Answered
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...

13 years ago | 0