Beantwortet
imwrite does not work when file extension is given
Do not use "path" as name of a variable, because this shadows an important Matlab command. This does run usually, but during deb...

mehr als 5 Jahre vor | 0

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Finding an average matrix from each matrix in an array
Which kind of array contains the matrices? A cell array, a numerical 3D array, a struct array? The solution depends on this deta...

mehr als 5 Jahre vor | 1

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How can I use funtions defined in a column vector individually?
A small modification of your code let accept RK4 vector functions also: function [t, y] = RK4(fun, t0, tN, h, y0) t = t0:h:...

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Merging several mat files in a row order
You did not explain, how a list of the files names can be obtained. I guess, that they can be found in the same folder: Folder ...

mehr als 5 Jahre vor | 1

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guidata(hObject, handles) does not save my data
How did you create the GUI? This does not look as GUIDE. How are the callbacks called? Directly as defined during the creation o...

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Command for saving .M files ?
Name = 'file1.m' Doc = matlab.desktop.editor.findOpenDocument(Name); if Doc.Editable Doc.save; end

mehr als 5 Jahre vor | 2

Beantwortet
convert from cell of characters to the equivalent double number
array = {'G',[]; 'E','H'; 'B','J'; 'A','C'; 'D','F'}; array(cellfun('isempty', array)) = {char('A' - 1)}; array2 = cell2mat(a...

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Smart for loop for summing cell array matrices
Yes, this does, what you expect. Simply compare the results of both methods. This is faster and looks cleaner: for RIPETIZIONE...

mehr als 5 Jahre vor | 1

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Why does resetting a 0x0 cell property value result in 0x1 cell?
If we cannot see the reset function, there is no chance, that we can guess, how the {0x1} cell is created. You could add a test...

mehr als 5 Jahre vor | 0

Beantwortet
Convert 'str' to 'number'
str = 'P12teta4'; a = str(1); b = sscanf(str(2), '%d'); c = sscanf(str(3), '%d'); ind = find(isstrprop(str(4:end), 'digit'),...

mehr als 5 Jahre vor | 0

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Help Fixing Leap Year Function
Use the standard notation and no neat accumulation of commands per line: function LeapYears condition = "yes"; while strcmp(...

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speeding up using cellfunction and arrayfun versus for-loop
The question is not clear. Please post some code, which reproduces your measurements. There are several details in your code, ...

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How can i make a 2D convolution with x = [1 0 2; -1 3 1; -2 4 0] and h = [1 -1; 0 2] and not use conv2? Can you please help me.
Look at the definition of the convolution again. Either the orientation of h or the submatrices of x must be changed: [h1, h2]...

mehr als 5 Jahre vor | 0

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How to find inf and sup of a datum not contained in an array ?
x = randi([1, 100], 1, 30); y = 1 + rand * 99; [~, index] = min(abs(x - y)); indexBefore = max(1, index - 1); indexAfter ...

mehr als 5 Jahre vor | 0

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How to put in a condition from if/ifelse statements in a fprintf string.
january21 = [74 60 54 61 54 57 49 41 37 45 45 38 42 58 55 48 55 56 55 ... 55 55 57 60 65 72 71 60 48 56 60 70]; temp = jan...

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How can i solve this "Matrix dimensions must agree" error?
omega(:, :, i + 1) = omega(:, :, i) + 10 * x_hat2(:, i) * conj(e(i))'; This works since Matlab R2016b due to the auto-expanding...

mehr als 5 Jahre vor | 0

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Why all the code in a MATLAB program are just functions
"No function code" is code written to a "script". Scripts share their workspace (the list of loclly used variables) with their c...

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How can I vectorize the fun in Matlab with single code
Vectorize the bottleneck of the code manually. There is no automagic command, which can do this for you efficiently.

mehr als 5 Jahre vor | 0

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for loop over subset - finding indices vs if-clause
It depends. How expensive is "fulfill CONDITION"? Simply try it. Implement both versions and measure the timings with tic/toc. ...

mehr als 5 Jahre vor | 1

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Not enough input arguments (ideal=abs(r-D)>W/2;)
You have copied the HTML key ">" instead of of the actual character > . Then "gt" is interpreted as ">=" operator but the rig...

mehr als 5 Jahre vor | 0

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Can you pass same values along a chain of multiple functions?
The CamelCase or sulkingCamelCase is a convention only, which can help to keep the overview. The Matlab code runs fine without u...

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I have difficulty to install Matlab to my PC whose os is Windows 7
Matlab 2021a is supported for Windows 7 sp1: https://www.mathworks.com/support/requirements/matlab-system-requirements.html I...

mehr als 5 Jahre vor | 0

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Which one is the correct one to calculate
R = 0; L = 30; % Some educated guesses q = rand(1, L); lambda = rand(1, L); alpha = rand; dt = rand; for j...

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Missing figures in MATLAB script
There is this brute clearing line in the middle of your code: clear all, clc, close all Of course it clears all variables and ...

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Trying to solve an ode using Heun's method but getting an error
Slope_left = (1+4*x)*sqrt(y) Because x is a vector, Slope_left will be a vector also. At least in the 1st iteration. In later i...

mehr als 5 Jahre vor | 0

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Command use to convert expression E to numeric form
Maybe you mean the output to the command window? format short pi * 1e8 format long pi * 1e8 format long g pi * 1e8 You ha...

mehr als 5 Jahre vor | 0

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Looping between two functions
Simplify your code: for i=1:hsd kas(i)=wqe(i); sak(i)=kli(i); cbb(i)=bbc(i); end does the same as: kas = w...

mehr als 5 Jahre vor | 0

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How to solve this issue Variable 'X' is not fully defined on some execution paths.
Insert a definition of CONDICIONTRAMO = -1 (or NaN, or 12) either on top of the code, before the IF branchs, or in a finaly else...

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When using "Pause on Warning/Error," is there a way to avoid breaking into built-in functions?
Matlab cannot guess in which level you want to display the call stack. So either select it manually, or use try/catch/rethrow fo...

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Sizeof double float int etc
Version 1: w = whos('z'); nbytes = w.bytes; Version 2: function S = sizeof(X) switch class(X) case {'uint64', 'in...

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