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How permutate 2-by-2 matrices in a single matrix
a = [1,2;3,4]; b = [2,5;1,6]; c = [3,7;2,4]; abc= {a,b,c}; abc=perms(abc) abc=cell2mat(abc)

3年以上前 | 0

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How do I split an array into small array of fixed size with increments by 1?
A=randi(10,1,10) k=4; B = hankel(A(1:end-k+1),A(end-k+1:end))

3年以上前 | 1

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What kind of Interpolation Algorithm Will be Applicable for the Following data set to obtain smooth curve?
It looks like your data has a couples of pairs/tripples that are closely spread. I suggest to merge thme to a single point then...

3年以上前 | 0

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Finding unique closest point corresponding to latitude and longitude vectors for a given point with shortest distance.
Use dsearchn on lon/lat is wrong. The right procesure is convert lat/lon to 3D coordinates (for both list P and PQ use dnsear...

3年以上前 | 1

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Generate all permutation or possibilities
s='locate' n=3; c=nchoosek(s,n); c=reshape(c(:,perms(n:-1:1)')',n,[])'

3年以上前 | 0

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Solve system of equations with some knowns and unknowns in the same matrix
% Random example A = rand(5,5); x = rand(5,1), b = A*x, [m,n] = size(A); % put NaN at the position where x is unknown; x...

3年以上前 | 0

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How do I extract the first non-zero value from array after specified number of zeros?
Basic for-loop programing x=[1,2,0,0,3,4,0,5,6,7,8,9,0,0,0,0,0,0,0,0,0,0,0,0,0,11,12,13,0,14,0,0,15,16,17,0,0,0,18,19,0,0,0,0,0...

3年以上前 | 0

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Load and Save using PARFOR Loops
Normal parfor ii = length(files) should be parfor ii = 1:length(files)

3年以上前 | 1

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Model fit using fminunc based on measured data
kB = 8.617 * 1e-5; % in eV/K x1 = [233; 264; 295; 326]; % temperatures x2 = [420000; 970000; 3800000; 10000000]; % lifetimes ...

3年以上前 | 0

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converting uint8 to double in a faster way
dotspos = double(cat(4,temp.cdata));

3年以上前 | 0

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Finding the most common element in the first row of a matrix
Use mode command [v,f]=mode([ 2 3 4 5 5 5 6 7 7])

3年以上前 | 0

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Alternative ways to generate a structure from strings without using eval?
If you want to avoid EVAL you can parse the char array and transform it to S and B arguments of subsasgn function Do the same w...

3年以上前 | 1

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concatination of matalb structures with diffrent set of fields in recursive call
Try to include the following function and replace in your code cat(1, ...) by catstruct(1, ...) function S = catstruct(dim...

3年以上前 | 0

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Variable in function as well as integral boundary
I have no idea if the code correspondons to the formula; I just modify your code to make it work on array theta = 1:90; A = 0....

3年以上前 | 2

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Which one is the right answer, sum(w(:)) or sum(sum(w))?
"Since I am quite new to MATLAB, can anyone tell me, is there any other function or Best Practical method to solve such problem?...

3年以上前 | 0

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How would you make these for loops dynamically recursive?
https://fr.mathworks.com/matlabcentral/fileexchange/17818-all-permutations-of-integers-with-sum-criteria It will return 6435 so...

3年以上前 | 1

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what precautious should i follow before upgrading to higher matlab version?
If you use third party compilers make sure it is still supported by the new version. In general make sure your PC meets the req...

3年以上前 | 1

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Permutation with repeating elements.
Just brute force of filter out what is considered as duplicated g = [1 1 2 2 3 3 3]; x = 1:7; p = perms(x); [~,i] = unique...

3年以上前 | 0

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How to step through vector permutations in a parallel loop, without generating all permutations in advance?
function getenumperm bellow enumerates the permutation of 1:n n = 4; for k=1:factorial(n) % or parfor p = getenumperm(k, ...

3年以上前 | 0

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matrix multiplcation in loop
X is three dmiensions nit 4 as you wrote A=[2 3; 4 5]; B=[3 4; 5 6]; X = B .* reshape(A.', 1,1,[])

3年以上前 | 0

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Change sequence of consecutive trues to falses, in logical array
x=[true;false;false;true;true;true;true;true;false;true]' x & ~([false,x(1:end-1)]&[x(2:end),false])

3年以上前 | 0

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Can anyone tell me how to generate a binary orthogonal complement of a given binary matrix ??
I'm not expert of calculation in finit field, so just use brute force, there are 63 vectors that are orthogonal to the s you pro...

3年以上前 | 0

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I have several multiple cell arrays with different sizes, and I want to find the intersection of all the arrays at the same time
This is what you want https://fr.mathworks.com/matlabcentral/fileexchange/66614-mintersect-varargin

3年以上前 | 0

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Find maximum of quadratically constrained quadratic problem using MATLAB
The problem of least-square minimization under quadratic constraints is known to might have many local minima. So if you use fmi...

3年以上前 | 1

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A compact way to find max in one column with a condition on the second column
a = [35 -1 21 1 11 2]; max(a(a(:,2) ~= -1,1))

3年以上前 | 0

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How do I speed up my variable lookup algorithm?
Try this % Fake data slantvals = randi([0 10], 1, 224*320*320); var = rand([5,5,5]); slantinds = randi(length(var),[numel(sl...

3年以上前 | 0

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how to find correlation of a row with all the other rows of a matrix ?
If you have the right toolbox, use https://fr.mathworks.com/help/stats/corr.html

3年以上前 | 0

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How to use the SUM() function..?
You overshadow sum function make sure to run clear sum before runing your code

3年以上前 | 0

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Efficient way to assign indices to variables in a matrix
Timings with my brand new laptop with Jan's code Elapsed time is 0.004218 seds. % ISMEMBER Elapsed time is 0.001169 seconds. %...

3年以上前 | 1

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An error in filtfilt
Don't tranpose your date if you want to filter along the long dimension sig= P01EC1(:,:);

3年以上前 | 0

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