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How to read 8-byte floating point numbers from binary？use fread
With 'ieee-le' format the bytes are read in the order [8,7,6,5,4,3,2,1], with 'ieee-be' as [1,2,3,4,5,6,7,8]. There is no format...

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Create random regular matrix (Matlab)
Having m ones in each column and n ones in each row works only, if the the resulting matrix has the size [a*m, a*n]. A construc...

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I'm not able to read audio file >4GB
If you can store a 5GB file on the disk, the disk cannot be formated in FAT32. This means, that the limit is caused by the file ...

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Calculate delta time in seconds
Starttime = "28-Jun-2021 05:05:38"; Stoptime = "28-Jun-2021 05:15:38"; Deltatime = compose("%d", seconds(datetime(Stoptime) -...

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Merging rows of a matrix into a number
C = [345 679 158]; D = rem(floor(C ./ [100, 10, 1]), 10)

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Problem with subplot ful screen
Yes, of course. You are creating a 10x2 table of plots: subplot(10,2,1) % ^^ Use subplot(5, 2, k) for a 5x2 table.

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Functions name duplication in toolbox
What about using builtin('kmeans') to call the Matlab version? [EDITED: This does not work. Thanks, Steven Lord] Did you add yo...

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How do I get r2016a?
I'm not sure if this shortcut is working for you: https://www.mathworks.com/downloads/ If not, open "May Account" on your prof...

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Code for romberg integration using recursion
The posted code runs without an error in R2021b. eps_step = 1e-5; N = 11; a = 0; b = 1; R = zeros( N + 1, N + 1 ); h = b -...

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How to decompose 3d array to 3 matrices
x = rand(51, 71, 3); v = reshape(x(:, 27, :), [], 1); size(v)

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How to accelerate the permute for 3D matrix
You can't. permute works efficiently already.

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How to download data using proper link
FileName = 'prov.postprocess+sMpAn+dMOD08_M3_6_1_Deep_Blue_Aerosol_Optical_Depth_550_Land_Mean_Mean+zNA+t20010101000000_20201231...

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Generate a matrix of combinations without repetition (array exceeds maximum array size preference)
Instead of permuting [0,0,1,1] and removing the duplicates, you can obtain the list of indices of the ones (or zeros): M1 = uni...

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Infinite looping: Knowing its presence in a big program?
See: https://en.wikipedia.org/wiki/Halting_problem You can prove, that there are no "tricks" to determine securely in advance i...

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Run two scripts simultaneously matlab
The easiest way is to start 2 Matlab sessions.

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Sorting cell for only dublicate values
Is the input really a cell containging strings? Or a cell string? Ort a string array? % Test data with a cell string: data = s...

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Divided difference(Newton metod)
There was a missing closing parenthesis. The trailing esmivolon suppresses the output. If you omit it, this is displayed: test ...

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why is my vector empty
for i=1:size(A,1) disp(double(A{i})) end i = size(A,1) now. Then: row_=(double(A{i})); Is a vector of the ASCII values o...

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Add a textbox in a subplots inside a loop
Move the repeated code out of the loop to simplify the code: z = [0.44, 4.7, 7, 8, 17.9, 31, 57]; dim = [.2 .5 .3 .3]; c ...

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Why does mldivide solve equations so fast that FORTRAN can't compare it？
Matlab's code for the matrix division is not made public. Internally optimized BLAS libraries and MKL are used. The taskmanager ...

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Converting a binary matrix to decimal.
The error message is clear: bin2dec requires a CHAR vector as input or a cell string. See: doc bin2dec You provide a numerical...

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Error in Bvp4c
You define the variable beta on top of the code, but this does not mean, that it is known in all subfunctions. Pr, gamma and lam...

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How to normalize a matrix in such a wat that every row sum of X(:,:,i) should be 1 except for ith row
X = rand(6, 3, 6); N = sum(X, 2); N(sub2ind(size(N), 1:6, ones(1,6), 1:6)) = 1; Y = X ./ N; Now sum(Y(i, :, j)) is 1 is i~=j...

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Faster for loops/or how to cut some time
a=randn(50,1); b=randn(50,1); tic [aa,bb]=using_cells2(a,b); eloopC=length(aa); eloopP=length(bb); for i=1:(eloopC) ...

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Get the time of the messages
Try: Time_Matching = Time_AIS1(msg_match{K}) % curly braces

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find maximum number in a range of data
In max(T(S1,6)) you are searching in the submatrix T(S1, :). But you use the result as index in the full matrix T. You want to a...

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How do i plot equal size of circle in square(100*100 m^2) without overlapping?
This is an extremly challeging task. See https://en.wikipedia.org/wiki/Circle_packing https://en.wikipedia.org/wiki/Circle_pac...

4년 초과 전 | 1

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cannot calculate mean on for loop
The elements of neg_m are overwritten repeatedly in the inner loop. Maybe you want: for ni = 1:35 neg_m(ni, :) = mean(resh...

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How to make the negative sign in the legend easier to see?
strcat removes interior spaces. This is not useful here and it is not in general. I consider this as a design error. Use cat in...

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Index exceeds the number of array elements (1)
Replace for j = 1:n-1 by for j = 1:i-1 By the way, you can write s = 0; for j = 1:i - 1 s = s + U(i, j) * x(j); ...

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