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Invalid expression. Check for missing multiplication operator, missing or unbalanced delimiters, or other syntax error. To construct matrices, use brackets instead of parenthe
You are missing the multiplication operator in several places. For example: IndexImg((Orientation >= pi/8 & Orientation < pi/4...

etwa 3 Jahre vor | 0

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Is there a MatLab online training course that teaches you how to create and use functions?
There is a module in the Matlab Fundamentals online training that concentrates on functions: https://matlabacademy.mathworks.co...

etwa 3 Jahre vor | 0

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finding a numeric pattern in a vector
Note that I added an additional test at the end of vec to make sure this handles a multi-digit number in the middle position of ...

etwa 3 Jahre vor | 0

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How to extract specific dates from a datetime table?
whos('-file', 'DATE1.mat') whos('-file', 'DATE2.mat') load('DATE1.mat') load('DATE2.mat') whos head(datet) head(B) found_...

etwa 3 Jahre vor | 2

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How do I use xline() to plot values calculated in a for loop?
Your x is going to be symbolic based on the code you posted (you can verify this by using the whos in the Command Window or by l...

etwa 3 Jahre vor | 0

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What is the previous syntax for this function?
The strcat function has been around for a long time. strcat("Hello", "World")

etwa 3 Jahre vor | 0

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output of two function results
You need to provide two output variables when you call the function. Note that the names you use when you call the function don...

etwa 3 Jahre vor | 1

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Why are values not rotated?
P = [1 2]*10^7; % made up data to test with S = [1 2; 2 3]; T = [0 70; 0 100]; plot(S(1,:),T(1,:), S(2,:), T(2,:...

etwa 3 Jahre vor | 0

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Calculate the temperature distr
First of all, format your code (type Ctrl-A then Ctrl-I) in the Matlab editor. Second, add more comments. For example, is m ...

etwa 3 Jahre vor | 0

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Factorial using a for loop
Your code works fine (though I would add semicolons to the end of all lines except the for and end to avoid spewing a bunch of s...

etwa 3 Jahre vor | 2

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read several csv files with space in the name format
i = 1; filename2 = strcat('opt.w.matrix.reg. ',int2str(i),'.csv') As you have seen, strcat strips leading and trailing spaces....

etwa 3 Jahre vor | 0

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remove decimals from title when using sprintf
Q=2021; %year x = 0:10; y = x.^2; plot(x,y) grid on title(sprintf('text %d',Q)) % <<< replace %f with %d

mehr als 3 Jahre vor | 0

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Error using .^ not enough input arguments
Perhaps you meant this instead % L = integral( sqrt(1+{power(dy/dx),2}),x1,x2); % ^ ^ remove...

mehr als 3 Jahre vor | 0

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Most readable syntax to fill table in a for cycle
There probably isn't a significantly cleaner way to do this. See below for a way to suppress the warnings. format short e x =...

mehr als 3 Jahre vor | 0

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How do i do x1<=x<=x2 in matlab?
You have to split up the compound condition into two conditions: (x1 <= x) && (x <= x2) If these terms are scalars, that will ...

mehr als 3 Jahre vor | 0

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Formatting read data from text files
text_data = fileread('Question.txt'); disp(text_data)

mehr als 3 Jahre vor | 1

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How can I save an animated plot as a GIF?
Check the answer to this question: https://www.mathworks.com/matlabcentral/answers/94495-how-can-i-create-animated-gif-images-i...

mehr als 3 Jahre vor | 0

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animated sine wave continously
This should get you started. Adjust as desired. Note that the animation won't show here, but I tested it my local copy of Matl...

mehr als 3 Jahre vor | 0

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saving workspace variables individually?
a = 1; b = 2; c = 3; vars = who for v = 1:numel(vars) save(sprintf('%s.mat', vars{v}), vars{v}) end dir

mehr als 3 Jahre vor | 0

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Color in plot from Table
Just a couple of issues. You need column vectors to insert into the table, and you can only have a scalar string or char vector...

mehr als 3 Jahre vor | 0

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Convert C code to Matlab code for reading binary file
Your Matlab struct doesn't match the definition in the C code. For example, the third element is a char array of 100x1000 in th...

mehr als 3 Jahre vor | 0

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Saving a structure array, not fields of it
s1 = struct('a', 1, 'b', 2') save('s1.mat', 's1') % don't use the '-struct' option clearvars whos load('s1.mat') whos Anot...

mehr als 3 Jahre vor | 0

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Find column number for every row in matrix
A = [ -1 4 1 1 -1 -1 -5 4 -1 ]; [row, col] = find(A > 0) [~,idx,~] = unique(row, 'first...

mehr als 3 Jahre vor | 0

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Plot colored angle between two lines on the YZ plane
This doesn't look exactly like what you want, but should get you started. meta = [14.97, 29.84, 5.61]; meta_plan1 = [15, -10, ...

mehr als 3 Jahre vor | 1

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I have a problem with butter filter and I can’t fix it
The error was because you were trying to set the cutoff frequency at the Nyquist frequency (half the sample rate). The error me...

mehr als 3 Jahre vor | 0

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Simple loop with equation problem
Time(1) = [0]; Quantity(1) = 0.2; % Corrected initial condition Xt1 = 0.2; a = 0.5; t = 9; for i=1:t Xt1 = a * Xt1 * ...

mehr als 3 Jahre vor | 0

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How to use isoutlier based in a part of the data?
It seems like what you are wanting to do is to chop off the "increase at the end". Here is one way to do that by searching back...

mehr als 3 Jahre vor | 1

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reading serial COM port on the fly (weighting scale -> WinPC)
The serial object overload of fopen doesn't have any output arguments, so change that line of code to the following. fopen(p) ...

mehr als 3 Jahre vor | 0

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Plotting different color points based on array values
x = linspace(0, 10); y = sin(x); % test data yhi = y; ylo = y; threshold = 0.5; idxlo = y <= threshold; idxhi = y > thresh...

mehr als 3 Jahre vor | 1

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How to bring a patch to the bottom of a figure?
The code you originally posted already had the lines on top. Just plot the lines after the patch. hold on c = fill([0 4 5 2 1...

mehr als 3 Jahre vor | 2