Community Profile

photo

Les Beckham


Last seen: Today Aktiv seit 2013

Many years developing flight control algorithms and software

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

Statistics

All
  • 12 Month Streak
  • Knowledgeable Level 5
  • Pro
  • MATLAB Central Treasure Hunt Finisher
  • First Review
  • Thankful Level 1
  • First Answer
  • Solver

Abzeichen anzeigen

Content Feed

Anzeigen nach

Beantwortet
Why a condition like If (~Input) changes to a complex condition with ternary operator ?
So, the original condition if (~Input) is C code and not Matlab code? If so, you should use the logical not operator which is !...

41 Minuten vor | 0

Beantwortet
Using the listdlg function
You probably just need to wrap your switch/case processing in a for loop. For example: s = listdlg('ListString', {'One', 'Two'...

etwa 22 Stunden vor | 0

Beantwortet
anticlockwise points coordinates sorting
A = [0 0 ; 1 0.2; 0 1 ; 0 0.6; 1 0 ; 1 1 ; 0.6 1; ...

10 Tage vor | 1

| akzeptiert

Beantwortet
How to use subplot in a UIFIGURE?
When you post a question that states that you are getting error(s), you should post the complete text of the error message (ever...

15 Tage vor | 0

Beantwortet
Text in editor window suddenly vanishes in R2022b.
I would definitely do a SaveAs to another filename in case the data is still there but just not showing. Use a different filena...

15 Tage vor | 0

Beantwortet
Remove text after a symbol
If the titles are character vectors in a cell array: titles = ... { 'Bohemian Rhapsody - Remastered 2011' '(I Can''...

15 Tage vor | 0

| akzeptiert

Beantwortet
How to permanently disable warnings in MATLAB editor?
I believe you can do that by un-checking the "Enable integrated warning and error messages" checkbox under the Code Analyzer opt...

16 Tage vor | 0

| akzeptiert

Beantwortet
Cumulative distance vs time graph using a velocity vs time graph
You need to save the value of integ on each step of the integration. See changes below marked with % <<< clc; clear; close; ...

17 Tage vor | 0

| akzeptiert

Beantwortet
how to get the same result using rand
The documentation for rand states that it returns values "drawn from the uniform distribution in the interval (0,1)". If you wa...

28 Tage vor | 2

Beantwortet
How do I replace one data column from a text file to the data column of another text file
rch = readtable('https://www.mathworks.com/matlabcentral/answers/uploaded_files/1175438/outputrch.txt', ... 'HeaderLines', ...

etwa ein Monat vor | 0

Beantwortet
sum of time series performace
Your question isn't very clear but it appears that perhaps you want to do a moving average. Take a look at the documentation fo...

etwa ein Monat vor | 1

Beantwortet
Reading in a text file with numbers and strings in
Try using readtable instead of readmatrix. This will read in the strings properly and allow you to do your cleanup based on the...

etwa ein Monat vor | 0

Beantwortet
Extract numbers from char type
Or, in one line of code: s = '4.64 km'; num = sscanf(s, '%f') % num will be a double

etwa ein Monat vor | 0

Beantwortet
Hold a value indefinitely once a condition becomes true
One way would be to route the output of the relational operator to two places: (1) a summing junction or an OR block, and (2) a...

etwa 2 Monate vor | 0

Beantwortet
How to have Logging in Matlab
Perhaps the diary command will do what you need. An excerpt from the documentation linked above: When logging is on, MATLAB® c...

etwa 2 Monate vor | 0

| akzeptiert

Beantwortet
Plotting patters using circles and a trignometric equation
k = 1:14000; a = pi*k./14000; Xk = cos(10*a).*(1-0.5*cos(16*a).^2); Yk = sin(10*a).*(1-0.5*cos(16*a).^2); Rk = 1/200 + 0...

etwa 2 Monate vor | 1

| akzeptiert

Beantwortet
How to remove comma from numerical data
Copy this text and paste it into a text editor. Then search and replace all of the commas with nothing. Then run that modified...

etwa 2 Monate vor | 0

Beantwortet
How to use data in a script from a function in another.
% Example script NewBricks = UseBrickData(); % Call the function and assign the return value to the variable NewBricks disp(Ne...

etwa 2 Monate vor | 0

Beantwortet
How to view an mlx file without using MATLAB
You can "Save as..." an mlx file to pdf, docx, html, or latex but you lose the interactivity. You will get a static "snapshot" ...

etwa 2 Monate vor | 1

Beantwortet
How schould the matlab function be to hold an signal between two values?
Perhaps something like this in a MATLAB Function block? function out = determineStatus(in) persistent out if isempty(out) ...

etwa 2 Monate vor | 1

| akzeptiert

Beantwortet
How can I set x ticks for every curve in the subplot, legend for every curve and a title for the whole figure?
It looks like it works just fine except for the legend. Instead of legstr= "\theta_1_/_2 = "+(5)+"°"; try this legstr= "\th...

etwa 2 Monate vor | 0

| akzeptiert

Beantwortet
Automatic change of legend's arguments
labels = {'A','B','C'}; for i = [1 3] h(i) = plot(rand(10,1), 'DisplayName', labels{i}); hold on end grid on legen...

etwa 2 Monate vor | 1

| akzeptiert

Beantwortet
How to adjust the position of the x-axis ticks and put the angle degree on the values of the x-axis ticks?
Vec_MIS = [0.238000000000000,1.18980000000000,2.14160000000000,4.99700000000000,6.90070000000000,10.7079000000000,14.51520000000...

etwa 2 Monate vor | 0

| akzeptiert

Beantwortet
Generate a sinus signal and plot the output
Your tmax is huge so you are plotting many many thousands of cycles. Also, stem clutters up the plot with circles on every data...

2 Monate vor | 0

| akzeptiert

Beantwortet
How do you change the transparency of multiple lines using "plot" if the lines are all different colors?
h = plot(rand(5)); % example plot. When you make your plot be sure to capture the handle % now set the alpha on all the lines ...

2 Monate vor | 0

Beantwortet
Rounding towards zero or from zero
There is no tie involved in rounding 3.6. If you wish, you can use floor instead: floor(3.6) If x was 3.5 instead, that would...

2 Monate vor | 0

| akzeptiert

Beantwortet
Is it possible to have a file that changes it name depending on another variable?
Try this: % Button pushed function: SaveButton function SaveButtonPushed(app, event) PatientID = app.PatientI...

3 Monate vor | 1

| akzeptiert

Beantwortet
Condense code in Split string operation
If you put the filename in a string instead of a char vector you can do it in one line s = "xxx_yyy_zzz.xlsx" extractBetween(s...

3 Monate vor | 1

Beantwortet
increasing amplitude of sine wave
Fs = 44100; dt = 1/Fs; StopTime = 3; t = (0:dt:StopTime-dt)'; Fc = 3000; A = linspace(0, 1, numel(t))'; y = A.*sin(2*pi*Fc...

3 Monate vor | 0

| akzeptiert

Beantwortet
How to search for previous values in a table?
This should do what you want. Note that the cell array in this case only has one cell because there are only two timestamp rows...

3 Monate vor | 0

| akzeptiert

Mehr laden