Answered
How to find the zero vaue of a plot?
X=[0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20]; Y=[-0.88 -0.7489 -0.6178 -0.4867 -0.3556 -0.2245 -0.0934 0.0378 0.168...

3 years ago | 1

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Answered
Display time before the prompt arrows
See this utility on the File Exchange: https://www.mathworks.com/matlabcentral/fileexchange/26471-setprompt-set-the-command-win...

3 years ago | 1

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Answered
How to do the example below in MatLab? I am dealing with same sort of problem in matlab
Something like this should do what you want (using made up example data): % simulating read of csv file1 (replace by data1 = re...

3 years ago | 1

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Answered
Where is the error in my code?
You need to specify an increment size if you expect r to be a vector. Currently it is a scalar equal to zero. Q will not be a ...

3 years ago | 0

Answered
help on graph (w/o common matrix plotting built-in functions)
In that case, maybe something like this will get you close. A = randi(2,10,365)-1; x = 1:size(A,2); y = size(A,1):-1:1; for ...

3 years ago | 0

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Answered
help on graph (w/o common matrix plotting built-in functions)
A = randi(2,10,365)-1 str = repmat(' ', size(A)); str(A==1) = '-'; disp(str)

3 years ago | 1

Answered
Reveresing the order of columns in an array
% Note: use semicolons instead of commas for row breaks so you get 4 columns q = [1 2 3 4; 5 6 7 8; 9 10 11 12; 13 14 15 16; 17...

3 years ago | 0

Answered
Recognise specific pattern in timetable
One approach without requiring the Signal Processing Toolbox: load('answers.mat') % an approximation of your data x = data(:,1...

3 years ago | 1

Answered
Extracting 2 Far right characters
One approach that generates a cell array: tt= {'United Kingdom TR';'United Kingdom SR';'United Kingdom WR';'Worldwide TC'}; c ...

3 years ago | 0

Answered
How to Rescale X Axis in Plot
Since you didn't show the code you used to generate the plot or include the data, I'll have to guess what the problem might be. ...

4 years ago | 0

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Answered
'Replace' shortcut in editor for R2022
Ctrl-H

4 years ago | 1

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Answered
calculate time from alarm (variabel x) to event (variable y)
Try this t = [0;10;20;30;40;50;60;70;80;90;100]; % in sec; variables are generated every 10 seconds alarm = [0;0;1;0;1;0;0;1;...

4 years ago | 0

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Answered
Read txt file with no header
This should work for any number of columns and it automatically detects the number of header rows and the variable names. t = r...

4 years ago | 1

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Answered
How do I resolve these two lines separately?
Another approach B=rand(3,5) A=[0 0 0 1 0;1 1 1 0 0;1 0 1 1 0] idx = B > 0.6 A(idx) = ~A(idx)

4 years ago | 1

Answered
Count number of words per row in a string
In 2020b or later you can also use a pattern with a regex pattern to find (and count) words. It took some experimenting to get ...

4 years ago | 0

Answered
Can yous tell me this block in Simulink
That looks like the XY Graph block, perhaps. It normally isn't orange, however.

4 years ago | 0

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Calculating u and v components from wind direction and speed
Actually, it is straightforward. v (North (y) component) and u (East (x) component) can be calculated from S (wind speed) and D...

4 years ago | 0

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Answered
How do I calculate the acceleration using only 3D distances?
load acc_dist.mat xyz = cell_of_double_pre_ballsCopy{1}; dxyz = diff(xyz); % difference between adjacent points in xyz coordin...

4 years ago | 0

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Answered
Plot is not showing anything.
Replace your loop with h= 0.1; %step size for loop t = 0:h:1; for i = 1:numel(t) xt(i) = X0*exp((-S)*wn*...

4 years ago | 0

Answered
How can I use a variable for formatting?
You can also use %*d, like this for k = 1:5 fprintf('%*d\n', k, 2*k); % the first argument (k) is the field width, 2*k is ...

4 years ago | 1

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Answered
Is there a bug in imread() or imfinfo() with multiframe GIFs in R2021a/b?
Output of your test script theonlymap = 1.0000 0.0824 0.9137 0 0 0 0 0 0 0 0 ...

4 years ago | 1

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Answered
How to Create/Modify for matrices or matrix
K=5; matA = 1:K matB = repmat(matA, 1, K)

4 years ago | 1

Answered
3D Profile Extrude
x = [82, 80, 65, 38, 82]; y = [82, 54, 36, 94, 82]; x = repmat(x, 10, 1); y = repmat(y, 10, 1); z = (1:10)'; z = repmat(z, ...

4 years ago | 0

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Answered
Damping and natural frequency
The damping ratio that you calculated is greater than one, meaning this system is overdamped (non-oscillatory). It has two real...

4 years ago | 1

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Answered
Matlab graph is not drawn
You aren't incrementing k or creating t in your loop. There are also other things wrong with your calculation of x. For one th...

4 years ago | 0

Answered
Try and Catch for multiple conditions
Maybe something like this: if isfield(src, 'DeviceName') Name = src.DeviceName; else Name = 'unknown'; % or, just do...

4 years ago | 0

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Answered
Matlab is not recognizing the graph(...) function.
The graph function was added in release 2015b. See doc page here (the info on when it was introduced is at the bottom): https:/...

4 years ago | 0

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Answered
Filling an array with color points
j = 34; g = 3; A = zeros(j,g); A(:,3) = 1; % put ones in the third column A(:,2) = ([0:j-1]/j).'; % fill in the second colum...

4 years ago | 0

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Answered
How to change the type when creating HDF5 attributes.
I don't have any hd5 files to test this with, but I suspect that if you change this h5writeatt('tt.h5','/tide','Transient', "TR...

4 years ago | 0

Answered
Interpolating NaN values within a matrix
I would recommend the fillmissing function.

4 years ago | 1

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