Answered
Insert two text lines in the blank rows of a txt file
You cannot insert text in files, because a file an grow at its end only. There is no operation to shift the contents of a file. ...

4 years ago | 0

Answered
Remove value question: if previous row -row>+-3, then remove the row in matrix A
Your code contains some problems: for j = 1:size(A) Remember, that size() replies a vector containing the size of all dimensio...

4 years ago | 1

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Please help me to find the errors in my code for predictor corrector method.
I do not know, what you consider as "correct" result. All I see is the running code and there is no chance to predict, what you ...

4 years ago | 0

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What is the fastest way to get bit stream from 1D float data ?
I do not really get, what you try to do. Which format does the audiofile have? What do you call "bit stream"? Instead of explai...

4 years ago | 0

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Need help with error in for loop
Your code tests f1<f2 and f1>f2, but not f1 == f2. In this case x1(i+1) and x2(i+2) are not created. r = (sqrt(5)-1) / 2; d = ...

4 years ago | 0

Answered
Matlab has encountered an internal problem and needs to close
Matlab R2014a is not compatible with Windows 10. See https://www.mathworks.com/support/requirements/previous-releases.html R20...

4 years ago | 0

Answered
created file does not appear?
Are you searching in the correct folder? What does cd tell you? Or do you save the file with an absolute path? Maybe you are ...

4 years ago | 1

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Answered
how can i solve this ?
"Phimean=51*1" means, that this variable has the sie [51, 1]. After Vp=reshape(Vp,size(Phimean)); Cp has the same size also....

4 years ago | 0

Answered
matching the element of matrix with an array
A = {[2,3;2,7], [3,2;3,4;3,8], [4,3;4,5], [5,4;5,10], [7,2;7,8;7,12]}; B = [17,8,14,4,18] C = cell(size(A)); for iA = 1:numel...

4 years ago | 1

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Answered
How can i make this code block a function?
A simplified version of your code: function y = my_conv(x, h) z = x(:) .* h; [r, c] = size(z); y = []; for t = 2:r+c ...

4 years ago | 0

Answered
why is this function running infinitely?
% Simplified version: Master1 = eye(22,22); Master1(1, 1) = 0; Master1(22, 22) = 0; scan = 3; temp = Master1; i ...

4 years ago | 0

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where in my code I am thinking wrong?
length() is fragile: It uses to longer dimension. You cannot be sure if your table has more rows than columns. Use height() inst...

4 years ago | 0

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save the output data of GUI
Kp = getappdata(0, 'Kp'); Kr = getappdata(0, 'Kr'); if isfile('myData.mat') % older: exist('myData.mat','file') S = ...

4 years ago | 1

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Answered
use of global variables
I agree with John, Rik and Stephen, and dare to post this as an answer. Can global variables be used in this way? Maybe. The a...

4 years ago | 0

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Is it possible that the "m. file" code is converted from the double precision to the single precision??
This function has been developped an tested since 1995. You cannot be sure, if it works correctly with singles as inputs. conve...

4 years ago | 0

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Answered
Hi, what does ; exactly mean?
Please read the Getting Started chapters of the documentation. This is recommended for beginners also: https://www.mathworks.com...

4 years ago | 1

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for loop return answer in string matrix
Ci = randn(5, 4); pool = ["False", "True"]; a = pool((Ci > 0) + 1)

4 years ago | 0

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Importing .dat file into MATLAB
Searching for more information on the given page I've found: Note: See the PDS JADE SIS Document for more details on the format...

4 years ago | 0

Answered
Random matrix with no repeats in rows and columns.
Create the matrix elementwise. Choose a random element from the available elements. Exclude elements on top and left of the elem...

4 years ago | 1

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Answered
how to use mod function
mod() requires 2 inputs. You provide one only in the callback.

4 years ago | 0

Answered
Why does it give me a problem stating that, Index must not exceed 1?
I guess, that the error occurs here: plot(real(del_ZS1(60)),imag(del_ZS1(60)),'kr') The message means, that del_ZS1 is a scala...

4 years ago | 0

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How to save values from a for loop into a matrix
Do not use "save" as name of a variable. This would shadow an important built-in function, which causes troubles frequently. Yo...

4 years ago | 0

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How to delete columns from a matrix, conditionally?
keep = sum(~isnan(data), 1) >= 100; data = data(:, keep); Your approach does not work, because the matrix data is changed, but...

4 years ago | 0

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Answered
How to call a value from the command window to the editor window
Is it really a small integer? Then simply type "123". If it is a much more complicated nested struct, please explain this. It ma...

4 years ago | 1

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Matlab: In for loop, change name of variable
This is a very bad idea. The severe problems caused by the dynamic creation of variables have been discussed in the forum exhaus...

4 years ago | 0

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Avoiding drift while creating angular rotation with variable degree increments
Let's start with a simplification of the code: phi = 90; angle = 16; ddeg_min = 0.1; ddeg_max = 10; deg(1) = 0;...

4 years ago | 0

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Answered
how can I use a loop instead of cellfun
Why do you want to use a loop? To improve the speed? Then there are better methods: cellfun('isempty', f1) is faster than cellf...

4 years ago | 0

Answered
Slower processing of arrays in structures and pre-allocation
In the first example, the pre-allocation accelerates the code by about 0.15 seconds. With using a field of a struct, the benefi...

4 years ago | 0

Answered
What toolbox is required for allpaths() built-in command?
The documentation looks, like allpaths belongs to Matlab's standard toolbox, but it was introduced in R2021a. Which Matlab versi...

4 years ago | 0

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Answered
How to create a diagonal matrix that starts at (1,1)?
Maybe you mean: n = 4; lambda = 0.2; A = eye(n) * lambda % Or: A = diag(repmat(lambda, 1, n))

4 years ago | 0