Walter Roberson
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 2023
Awarded to Walter Roberson on 01 Jan 2024
Top ten contributors whose answers received the most acceptances in 2022
Awarded to Walter Roberson on 01 Jan 2023
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 2021
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Reach 100000 reputation points. Honors the first contributor to reach this milestone, Walter Roberson
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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
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The contributor whose answers received the most acceptances in 2017
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Contribute at least one answer each month for 36 consecutive months
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The contributor whose answers received the most acceptances in 2016
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Feeds
Get singular sagittal slice from nifti file saved as axial slices
Example L1 = load_nii('lung_029.nii'); S = size(L1.img); r1 = randi(S(1)); r2 = randi(S(2)); r3 = randi(S(3)); view1 =...
5 hours ago | 0
Code Generation from script file
You cannot do that. Code cannot be generated for script files. Code generation requires an entry point (a function)
6 hours ago | 0
Can't use daq. Unrecognized function or variable 'daqregister'.
daqregister() was an old interface that is no longer supported. https://www.mathworks.com/help/releases/R2019b/daq/transition-y...
1 day ago | 0
Is parallel processing possible in optimization with App Designer
My question is this: Is there any work-around for this problem? No, there is no workaround. Since app-related variables only ...
1 day ago | 0
contour plot problem Z must be at least a 2x2 matrix
x=[80;100;90;90;90]; y=[4;4;2;6;4]; [X,Y] = meshgrid(x,y); % Polly 11 f(x,y)=p00+p10*x+p01*y f1=1.7419-0.0006*X+0.0132*Y; c...
1 day ago | 0
GUI IN MATLAB 2021B, HOW TO SELSCT LISTBOX
Create a listbox with the colormap names. Set the callback for the listbox to execute Colormap_name = app.LISTBOXNAME.Value; c...
3 days ago | 0
can we implement matrix multiplication in simulink with known variables?
https://www.mathworks.com/help/simulink/slref/product.html with 'Multiplication' set to 'Matrix' Everything else is setting up ...
3 days ago | 0
when i tried to runpf matpower 33 bus program, it shows this problem
You appear to have a corrupted version of matpower . feval_w_path is defined for at least MATPOWER 5, MATPOWER 6, MATPOWER 7, ...
3 days ago | 0
trying to call a function from a function file in a script file
func = @afunction; %trying to make the variable func equivalent to "afunciton", % the function I created in the afunction file...
4 days ago | 0
Custom feature extractor is not recognized by bagOfFeatures function
Use bagOfFeatures with 'CustomExtractor' option. Pass this bag as the second parameter of indexImages
4 days ago | 0
| accepted
Unrecognized function or variable 'graphconncomp'.
Apparently it was in the Bioinformatics toolbox. See https://stackoverflow.com/questions/16883367/how-to-find-connected-compone...
4 days ago | 0
d2c PID-Conversion
That error is given when Tf < Ts, and apparently exists in order to avoid getting complex-valued outputs. Your Tf is 0, certain...
4 days ago | 0
| accepted
How can I plot the following data? Do I have to convert it first to another form?
stem(filledData(:,1), filledData(:,2)) or perhaps stairs(filledData(:,1), filledData(:,2))
5 days ago | 0
| accepted
Can integral2 left a variable inside?
I want to integral x and y first,but there were a variable w stuck in my function.Can I left it and integral x,y first? No, int...
5 days ago | 0
how to remove background from thermal image. i want to remove the background from the image. just want forground image
Consider the thermal images of the Parker Solar Probe. The standard operation of the probe is to block out the main disk of the ...
5 days ago | 1
How to zoom a figure and show the details?
Create a second axes. copyobj() the content of the first axes to the second axes. Turn zoom on for the second axes. Note: it is...
5 days ago | 0
A numerical calculation problem leading to Inf or NaN in matlab
If you need the exact value, calculate using the Symbolic Toolbox. However, it is questionable what meaning to assign to the e...
6 days ago | 0
Error with addpoints when trying to animate a trajectory following a marker
h = animatedline('Color', 'b'); p = plot(x(1), y(1), 'o', 'MarkerEdgeColor', 'red', 'MarkerFaceColor', 'red'); You do not have...
6 days ago | 2
| accepted
why in example"Architectural 112G PAM4 ADC-Based SerDes Model",symbol time is set to 18.8235e-12,which is 106GHz
The previous generation used a signaling rate of 53.125 GBd . This generation is twice that signaling rate. https://www.ieee802...
6 days ago | 0
| accepted
order using first column in array cell
sort_order = sort(newList(:,1)); newList = newList(sort_order,:);
6 days ago | 0
Can I transfer train "visionTransformer" to handle image sizes other than 384x384X3?
You would need to find the ImageNet 2012 dataset and train an appropriate network on it.
7 days ago | 0
Resolution of the gamultiobj's variable
Search over integers -100 to +100 and divide by 100 before use.
7 days ago | 0
Hi i created a matfile of hourly temperature 334*334*2928 . how i can convert the .mat file to Tif file ?
I suggest using the Mapping Toolbox, geotiffwrite
8 days ago | 0
| accepted
How to make the font sizes of Xlabel, Ylabel, and Title different in a heat map using MATLAB?
h = heatmap(......); warnstate = warning(MATLAB:structOnObject', 'off'); sh = struct(h); warning(warnstate); sh.Axes...
8 days ago | 0
| accepted
Functions returning part of N-D data
How do I write the class to make the colon work by itself? You would have to make bar a property instead of a method. Once it i...
8 days ago | 0
How do I pass a dynamic number of output variables to a function?
OutputVariable = cell(1,NumberOfOutputsNeeded); [OutputVariable{:}] = FunctionCall(parameters, as, appropriate);
8 days ago | 0
Launching MATLAB2024a
You are using a Campus-Wide license, which is a form of Educational license. In that situation, you do not activate against yo...
9 days ago | 1
Hi, everyone, why is the laser output power not shown in the figure?
plot(Z, y_history(4, :), 'y>-', 'DisplayName', 'Pp2-'); plot(Z, y_history(5, :), 'r', 'DisplayName', 'Ps+'); plot(Z, y_history...
11 days ago | 0
| accepted
Rand in the constructor of a class and createArray
When you have static properties of the class, then the value that is assigned when the class is loaded is used for all subsequen...
11 days ago | 0
How to get mexcuda running - compiler settings
and Microsoft Visual Studio 2015 (community edition). That was the problem. All versions of MATLAB that supported VS 2015 neede...
11 days ago | 0
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