Walter Roberson
Followers: 60
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
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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
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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
How to create a table with data from multiple tables using function or for loop
If you create a single table from the data, with one column being the date, and another column being the Surface area (sample nu...
7 hours ago | 0
The coder.ceval function is not supported in MATLAB.
To call C code from MATLAB, use loadlibrary and calllib
13 hours ago | 0
Solve equilibrium equations in MATLAB for a quadruped robot
[eq1; eq2] only has rank 5 even though there are 6 equations. There are either no solutions to [eq1; eq2] or else there are an i...
13 hours ago | 0
Shapley based feature selection
YtestPred = predict(Mdl, Xtest); test_accuracy = nnz(Ytest(:) == YtestPred(:)) / numel(Ytest) * 100; fprintf('test accuracy: %...
1 day ago | 0
Why do I get conj(L)
You probably used the ' operator on the symbolic vector. For example, syms L [1 4] A = [2 3; 4 5]/7 B = [L1 L2; L3 L4] C = A...
1 day ago | 1
How can I create a singleton object that is processed in parallel threads and processes?
How can I create a singleton-object that is processed in parallel threads and processes? That is not possible with process thre...
1 day ago | 0
| accepted
Error using trainNetwork Invalid training data. For classification tasks, responses must be a vector of categorical responses. For regression tasks, responses must be a vector
For regression tasks, responses must be a vector, a matrix, or a 4-D array of numeric responses which must not contain NaNs. Y ...
2 days ago | 0
Comprei um novo pc e preciso transferir a licença do antigo para esse
The MATLAB license does not permit the Student version to be installed on more than one host. dbtype(fullfile(matlabroot, 'lice...
4 days ago | 0
Need offline installer for MATLAB version R2023a.
See https://www.mathworks.com/help/install/ug/install-using-a-file-installation-key.html Alternately, use https://www.mathwork...
4 days ago | 0
How to write aa code to find factors of numbers in a set of numbers?
First of all, call factors() on the number. Run through the factors, building a list of each unique factor and its number of rep...
4 days ago | 0
Animation of a volume
You could use the File Exchange contribution videofig https://www.mathworks.com/matlabcentral/fileexchange/29544-figure-to-play-...
5 days ago | 0
Why do I write as Ib(1:478,31:565)(~BW) = 255
temp = Ib(1:478,31:565,:); temp(~repmat(BW,1,1,ndims(temp))) = 255; Ib(1:478,31:565,:) = temp;
5 days ago | 0
how we get matlab pass key
If you purchased MATLAB, then the license key should have been emailed to you. If you did not receive it, then contact support@m...
5 days ago | 0
WHY ITS TAKING TIME TO LAUNCH MATLAB EXE FILE IN VISUAL STUDIO C++?
The official solution is to use MATLAB Production Server https://www.mathworks.com/products/matlab-production-server.html Produ...
5 days ago | 0
how to provide feedback to MathWorks about an issue in Matlab
https://supportcases.mathworks.com/mwsupport/s/casetypeselection?language=en_US&c__caseParameter=productusage&s_tid=srlp_product...
5 days ago | 1
| accepted
What plugins to be installed for MATLAB
https://neuro-jena.github.io/cat/ Requirements CAT12 is designed to work with SPM12 and Matlab versions 7.4 (R2007a) ...
5 days ago | 0
Can I convert shades of red (Pink, Red, Maroon) in this RGB image to one single color, lets say blue?
im = imread('https://www.mathworks.com/matlabcentral/answers/uploaded_files/171158/image.jpeg'); imshow(im) HSV = rgb2hsv(im...
5 days ago | 0
run the below code and get output
Run ModelSimulation from https://github.com/vagg777/5G-Network-Simulator-for-User-Distribution# . It sets up all of the variable...
5 days ago | 0
can a matlab license be used on many systems
To do that, you would need one of: Concurrent license sized for 2 concurrent licenses Standard/Commecial/Professional individu...
5 days ago | 0
Why am I receiving a "Trial Not Available" error when generating a Trial License?
One of the main reasons why trials might be automatically denied, is if you are located in a country that is served by a distrib...
5 days ago | 0
How do I convert symbolic values from a matrix to numeric?
n = 5; syms v [n,1] v v(1) So indexing v does work to return the corresponding symbolic variable. Meanwhile, to substitute ...
5 days ago | 0
How can i store looped data from sensor in a table?
Initialize T = table('Size', [0 4], 'VariableTypes', repmat({'double'},1,4), 'VariableNames', {'interval', 'temp', 'pressure',...
6 days ago | 1
| accepted
How can I get splines subject to constraints?
You are trying to get vpasolve() to invent functions that satisfy certain purposes, trying various forms of f until it satisfies...
6 days ago | 1
Importing Point cloud to overlay on solid object
You probably need to use scatteredInterpolant . In some cases the scattered data is an "unraveled" rectangular grid; in such cas...
6 days ago | 0
How to get variable data depending on the value from another column. In an Array
corresponding_values = Array(ismember(M, Array(:,1), 2)); However, the comparison between M and Array(:,1) that will be done is...
6 days ago | 1
Question solve(eqn)
syms a0 a1 a2 a3 a4 a5 v = [0 2 4 6 8 10] f = [0 2.9 14.8 39.6 74.3 119] f1 = a0 + a1*v(1) + a2*v(1)^2 + a3*v(1)^3 + a4*v(1...
7 days ago | 0
How to get 'Live Editor Evaluation Helper' .m file name from live script through another live script?
When sub.mlx is called through main.mlx though, the same Live Editor file name is returned twice, which is obviously incorrect. ...
7 days ago | 0
find the minimum of polynomial.
syms a b c R f = a*R^2+b*R+c critical_points = solve(diff(f, R), R) value_at_critical_points = subs(f, R, critical_points)
7 days ago | 0
can anybody help me to find what is wrong in the following code?
The fzero() function requires a function handle. For symbolic work use vpasolve() syms p f=2-ellipticK(p) x0=0.1 a = vpasolv...
7 days ago | 0
| accepted
ubuntu에 Matlab 설치가 안되요.
It seems to be a problem with Ubuntu 14 https://askubuntu.com/questions/366556/13-10-xrdp-problem-with-gnome-fallback
7 days ago | 1
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