Walter Roberson
Followers: 57
I am currently in the middle of moving, so I am not around very much.
C, MATLAB, Shell, Perl, Fortran
Spoken Languages:
English
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Top ten contributors whose answers received the most acceptances in 2024
Awarded to Walter Roberson on 02 Jan 2025
Top ten contributors whose answers received the most acceptances in 2023
Awarded to Walter Roberson on 01 Jan 2024
Solve a problem for the first time
Awarded to Walter Roberson on 10 Jun 2017
Publish your first review
Awarded to Walter Roberson on 09 Oct 2019
Top ten contributors whose answers received the most acceptances in 2022
Awarded to Walter Roberson on 01 Jan 2023
Top ten contributors whose answers received the most acceptances in 2021
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Reach 100000 reputation points. Honors the first contributor to reach this milestone, Walter Roberson
Awarded to Walter Roberson on 14 Aug 2020
The contributor whose answers received the most acceptances in 2019
Awarded to Walter Roberson on 01 Jan 2020
The contributor whose answers received the most acceptances in 2018
Awarded to Walter Roberson on 18 Jan 2019
The contributor whose answers received the most acceptances in 2017
Awarded to Walter Roberson on 02 Jan 2018
Contribute at least one answer each month for 36 consecutive months
Awarded to Walter Roberson on 20 Jul 2017
The contributor whose answers received the most acceptances in 2016
Awarded to Walter Roberson on 20 Jul 2017
Feeds
I keep getting an error message in my code
plot(t,data_na(i,:),'color',col(:,i),'LineWidth',2); My guess is that you need plot(t,data_na(i,:),'color',col(i,:),'LineWidth...
8 hours ago | 0
I am working on a program for class and I am having trouble understanding what the problem is asking. Can someone advise me on how I should write the code?
Create a program that asks the user the following: which lot are you using? You can use input or questdlg or inputdlg or menu o...
9 hours ago | 0
MATLAB Indexing type dependence (bug?)
eps(single(67347456+50)) single precision numbers are 8 apart by the time of 67347456
14 hours ago | 0
Diferent answers to same cmd
A=[-.01 .1 0 32.2;-0.4 -.8 180 0;0 -.003 -.5 0;0 0 1 0] Your screen image shows you using -32.2 rather than 32.2
15 hours ago | 1
loading multiple.im7 images into Matlab using readimx function
filename = 'C:\....\n_2000_075'; im7_files = dir([filename,'/*.im7']); imgNum = length(im7_files); ...
16 hours ago | 0
ERROR while calculating Euclidean distances to multiple tables in cell array
Use for j = 1:width(C_all_steps_no_break{i})
1 day ago | 0
i am trying to figure out a way to store data from my rasberry Pi 5 sensors in an array on MatLab, i am new and wanted some guidance as to how i can add that.
near the top insert temperatures = []; pressures = []; temp_fs = []; Altitudes = []; Then before temperature = readTempe...
1 day ago | 0
How do you recieve your transmission, Live-script
sdrtx() supports BISTLoopbackMode
1 day ago | 0
Cannot open Matlab 2024b (apple silicon)after updating to MacOS 15.3.1,m2pro macbookpro
This is not happening to me on Intel MacOS 15.3.1 However, it sort of sounds like the problem that was recently faced opening o...
2 days ago | 0
Can someone please explain how this function? It is for simultaneously recording with the input(X) being white noise at FS 44100hz
These days, since R2017a, the provided code should be replaced. Instead the provided code should use audioPlayerRecorder https:/...
2 days ago | 0
multiple equations to steady-state system to transfer function
The Control System Toolbox functions, such as ss and tf do not support symbolic variables at all. There are very very few functi...
2 days ago | 0
利用2024a版本下的runtime进行complier程序封装后，怎么在win7系统上使用？
R2012a was the last release that was compatible with Windows 7. R2021b was the last release that was compatible with Windows 7 ...
3 days ago | 0
Is there a way to make MATLAB show time derivative with symbol_dot
syms x(t) y(t) x_dot(t) y_dot(t) J = jacobian(x*y) K = subs(J, {diff(x,t), diff(y,t)}, {x_dot, y_dot}) However!! In the expre...
3 days ago | 0
Column Format in a Table when using writetable
varfun calling compose specifying a character vector format (so getting out cell array of character vectors.) Repeat as often ...
3 days ago | 0
Plotting around zero deg. Angle
When you specify a vector for x for imagesc, MATLAB ignores everything except for the first and last entries. It does not care t...
4 days ago | 0
How to stop while loop with the Command Window ?
Your existing code never reads from the keyboard, so the keyboard is effectively locked out during execution (well, not locked o...
4 days ago | 0
ode45 code for 2 body problem
Use axis equal Your x axis range is different from your y axis range, so you are seeing a distorted view.
4 days ago | 0
Plotting the graph of only the last iteration
syms T U for n=1:10 y=int(H(U),0,T); yy= r0 + ((1-a)./M)*H(t).*r1 + (a./M)*y; r1=yy; end The output in y is symbolic -- ne...
4 days ago | 0
| accepted
how to send parameter function between app
Methods are also passed the object they relate to, unless they are marked as being "static"
4 days ago | 0
How to get consistant results when testing code performance
You could potentially code MATLAB-level sim() calls, inside a timeit However according to https://steveeddins.com/story-of-tim...
4 days ago | 0
How to learn System Composer
There is a free System Composer Onramp course; https://matlabacademy.mathworks.com/details/system-composer-onramp/orsc
4 days ago | 1
I have some questions about the example "Denoise Signals with Generative Adversarial Networks"
When you openExample('deeplearning_shared/DeepSignalDenoiserExample') then the directory that you are automatically cd()'d to ...
4 days ago | 0
| accepted
My code answers empty sym 0 by 1, except when the symbol equals zero.
syms x y1=solve(x,1) That means to solve the system of simultaneous equations x == 0 1 == 0 As it is impossible for 1 to eq...
4 days ago | 0
How to code an equation with that integrates a vector.
There are two ways. You can do it symbolically: syms A B C syms u__vec_(t) [1 5] x_0__vec = [A*cos(B)*cos(C) 5 ...
4 days ago | 0
MATLAB Optional Function Arguments
Suppose you have a function call that you intend to be passing in thesholdGain, and skip omega and transition. So you call best...
5 days ago | 0
Function With varargin Argument That Can Be Compiled With codegen
C has no native way of expressing optional arguments. The convention that has grown up in C is to arrange all of the optional pa...
5 days ago | 0
| accepted
Image Classification using Percentage
classNames = categories(imdsTrain.Labels); That tells us that the class names are categoricals. It is doubtful that the class n...
5 days ago | 0
| accepted
How to remove columns in very large matrices.
Working by selecting columns to save is marginally slower than working with columns to delete, on average. The timing overlaps -...
6 days ago | 0
Solving matrix differential equation
You try to take the derivative of x1 with respect to x2. You cannot meaningfully take the derivative of a function with respect ...
6 days ago | 0
| accepted
Missing input in the argument
K=@(t,p,Z,d,r1) (p*Z-d-exp(-t))*r1; K is defined needing 5 input parameters. V(i) = r0 + ((1-a)./M)*integral(K,0,P(i))+ (a./M...
6 days ago | 0
| accepted
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