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Les Beckham


Last seen: Today |  Attivo dal 2013

Contatto

Many years developing flight control algorithms and software

Programming Languages:
C++, C, C#, MATLAB, Assembly

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Risposto
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...

circa 22 ore fa | 0

| accettato

Risposto
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

4 giorni fa | 0

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Risposto
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...

9 giorni fa | 0

Risposto
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...

10 giorni fa | 0

Risposto
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...

15 giorni fa | 0

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Risposto
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...

16 giorni fa | 0

Risposto
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, ...

17 giorni fa | 1

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Risposto
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...

17 giorni fa | 0

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Risposto
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 * ...

18 giorni fa | 0

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Risposto
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...

24 giorni fa | 1

Risposto
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) ...

24 giorni fa | 0

Risposto
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...

25 giorni fa | 1

Risposto
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...

25 giorni fa | 2

Risposto
Not enough input arguments
Perhaps you have added the control system toolbox since last time this worked? That toolbox contains a function named pid that ...

28 giorni fa | 0

Risposto
How do I get the text command to display my character string in one line on a plot?
r = pi; % arbitrary value for testing {'r =' r} % Matlab will put each element of a cell array on a different line in text, tit...

29 giorni fa | 0

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Risposto
Using rmoutliers without a for loop
From the documentation of rmoutliers: B = rmoutliers(A) detects and removes outliers from the data in A. If A is a matrix, the...

29 giorni fa | 0

Risposto
Significant digits in a matlab figure
plot(rand(1,20)) grid on xtickformat('%.3f')

30 giorni fa | 1

Risposto
Convert datetime to numeric - preserve date format
Edited to work with datetime array vs a single datetime. d = datetime(['2023-02-27 14:00'; '2023-02-27 15:00']) % test data - r...

circa un mese fa | 0

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Risposto
Intersection of two tables
A = table(); A.user = ["user1";"user2";"user3";"user4"]; A.value = [10;20;30;40] B = table(); B.user = ["user3";"user4";"u...

circa un mese fa | 0

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Risposto
How do I plot 5e^(0.5t)sin(2*pi*t)
t1 = 0:10; e = exp((0.5)*t1); num6 = (5).*e.*sin((2)*pi*t1); plot(t1, num6, 'c') grid on You are plotting your exponential ...

circa un mese fa | 1

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Risposto
I want to disable a subsystem at time 30 secs where the simulation execution time is 50 secs.How this can be done
I would recommend reading this page in the documentation. You can drive the enable input with the output of a less than block c...

circa un mese fa | 0

Risposto
How I would determine if a string contains multiple substrings?
myString = "This has some words in it."; if contains(myString, "This") && contains(myString, "some") disp Yes else d...

circa un mese fa | 0

Risposto
How to plot a trajectory with varying colour?
Take a look at this Answer which shows a trick for doing this using surface. https://www.mathworks.com/matlabcentral/answers/50...

circa un mese fa | 0

Risposto
why do i get the error using alpha too many output arguments, can anyoen help please.
You get this error because you haven't defined alpha before Matlab tries to execute this line of code CE = DE*cos(alpha); Sinc...

circa un mese fa | 0

Risposto
How to solve this matrix equation
Since there are more equations than unknowns, there is no unique solution. A least-squares solution can be found using the \ op...

circa un mese fa | 0

Risposto
How to add commented description on new scripts
Perhaps this answer will help you do what you want: https://www.mathworks.com/matlabcentral/answers/354093-generate-custom-new-...

circa un mese fa | 0

Risposto
Move x-axis labels below the axis after relocation
I think we are going to need to see more of your code to figure out what is happening. It seems to work for me (I tried it in m...

circa un mese fa | 0

Risposto
truncated plot displayed adding the size
figure('DefaultAxesFontSize',16) semilogy([45,45],[10^-5,1],'--r') hold on semilogy([80,80],[10^-5,1],'--r') xlabel ('x','Fo...

circa un mese fa | 0

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Risposto
How to call bash script in App Designer?
Read the documentation for this command: system

circa un mese fa | 0

Risposto
Using 'while' loop to check if a file has been added to path
I would actually expect that your while loop wouldn't execute at all, since var.m is a standard Matlab command for calculating v...

circa 2 mesi fa | 0

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