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Having issues with plotting a single level contour line on a matrix that has edges
From your simple example, it can be seen that there actually are two places where the interpolated surface passes through the le...

9 months ago | 1

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How to add rows containing zeros to a matrix
Here is another way. A = rand(2,6) A(4,6) = 0

9 months ago | 0

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Plotcube function not working
There is a plotcube function on the file exchange: https://www.mathworks.com/matlabcentral/fileexchange/15161-plotcube?s_tid=sr...

9 months ago | 0

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Keep the latest desired value before changing to undesired value
There might be a way to do this using just basic Simulink blocks, but I don't have Simulink right now to test with. So, I'm goi...

9 months ago | 0

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Iterative Process to find a variable in which two equations are equal and opposite
I would use fminsearch for this. See below. Note that I am using abs(A - B) for the Error term. % minimize error between two ...

10 months ago | 0

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Show only a part of the yaxis
Here is a kind of messy workaround. Note that this doesn't work if you have the grid on. h = plot(linspace(-2, 2, 1000), atan(...

10 months ago | 1

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Answered
Smooth curve in certain regions to get desired output
Maybe you can adapt this approach to get what you want. This uses two different moving average filters for the start and end of ...

10 months ago | 1

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Answered
How to model secant and cosecant in Simulink
If I remember correctly, there is only one "Trigonometric Function" block in Simulink. Just double click the block and change t...

10 months ago | 0

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Why is the number of periods of a cosine wave in the plot changing with the number of samples ?
This is called aliasing. I recommend reading the linked Wikipedia article. The sample rate (in this case the number of time sam...

10 months ago | 3

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Answered
Plot with x-axis limits going from [180:360] then [0:180] contiguously
It seems extremely odd that your data would "wrap" at 250 degrees. Nevertheless... elevation = [26:80 0:25]; azimuth = linspa...

10 months ago | 0

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another crazy plot layout with zoomed portions and arrows
Hopefully you can adapt this approach to your needs. x = linspace(0, 10, 1000); y = exp(-x); plot(x, y) grid on ax = axes('...

10 months ago | 0

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Answered
A little help with translating a piece of Fortran code to Matlab
The easiest way to read a file line by line in Matlab is with the readlines function. Example: str = readlines('test.txt')

10 months ago | 0

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subplot with 1 large and 2 small figures
Yes it is. Here is an example. See the documentation for tiledlayout. tiledlayout(2, 2) nexttile([1 2]) % first plot spans tw...

11 months ago | 2

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select, only once, the names present in a struct
S.Number = compose('%04d', 0:16)'; % create test data since you only included a picture of your data desc = {'Scout'; 'Scout'; ...

11 months ago | 0

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Missing data retrieve from a periodic pattern.
load('TempRecord.mat'); plot(T.Time, T.Temp) grid on There is definitely not enough information here to fill in those large g...

11 months ago | 0

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How to plot weeknumbers (integers) in a graph without leaving gaps for weeks that do not exist
Maybe you can adapt this approach to your situation. dt = datetime(2023,1,[1 8 15 22 4*22+3*[7 14 21]]) % example datetime valu...

11 months ago | 0

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3D spherical plot is cut off by the edges of the graphing window
This doesn't work if you want to be able to interactively zoom in on a region, but if you have in mind a specific range of X, Y,...

11 months ago | 0

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Fill editfield text value with string from a table
For this specific example, readlines might work better than readtable. DataComments = readlines('file7.csv') Then pick which o...

11 months ago | 0

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Why don't the markers have the correct color in the legend?
The problem is that each of your calls to scatter is creating five separate sets of data for a total of 10 sets. But, you only r...

11 months ago | 1

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Answered
How to add seconds to a HH:mm DateTime array ?
datetime objects always have a seconds field. If you don't set it, it will already be zero by default, so you don't need to "ad...

11 months ago | 0

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how to use previous value in simulink? [(k-1) value]
It looks like what you need to do is remove the new_filtered_V input from your MATLAB function block and add this line at the to...

11 months ago | 1

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Answered
double conditional in one line
You have to join the multiple conditions with a logical operator. For example, the condition 0<x<1 is written like this x=0.23...

11 months ago | 0

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Saving a struct to a text file exactly how it appears in command window
Here is one approach. path='F:\settings.txt'; settings = struct; %Create structure called settings % settings.exposure_...

11 months ago | 1

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Answered
Click in the beginning and end of pure tone
Try adding ramps at the beginning and end to avoid the discontinuities of starting and stopping the tone. spl_rms = 60; spl_p0...

12 months ago | 0

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Answered
My MATLAB code is showing blank plots instead of encrypted and decrypted images. Why? [Help]
You need to convert encryptedImage and decryptedImage back to uint8. This line is converting to double because SBox is double. ...

12 months ago | 0

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Answered
normalization data to 0-255
format long g A = [linspace(1, 10, 10); flip(linspace(3, 100, 10)); rand(1,10)].'; T = array2table(A, 'VariableNames', {'ID', ...

12 months ago | 0

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Answered
Plot line with custom color
This looks a bit jaggedy and dark here, but looks good in my desktop Matlab. If you had read the documentation for plot, you co...

12 months ago | 0

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Answered
i keep getting this error: Error: Function definitions in a script must appear at the end of the file. Move all statements after the function definition to before the ...
You must have some code in your script after the last end that you didn't post. Make sure that the function definition is the v...

12 months ago | 0

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Creating a rectangular patch using random numbers
The chances of four random points in 3d being coplanar are virtually zero. The chances of them forming a parallelogram are infi...

12 months ago | 1

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Answered
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...

1 year ago | 0

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