Walter Roberson
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I do not do free private consulting. If you want to bring my attention to something, send a link to the MATLAB Answers location. I am currently caught up to T0099119; if you are waiting on a reply from me for an older issue, please send me a reminder.
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Feeds
running matlab exe file results in "Too many input arguments. MATLAB:TooManyInputs error"
You need function main_file(varargin) When you compile an executable, command line arguments are passed as parameters to the m...
ongeveer 5 uur ago | 0
Excel headers with symbols
You have to either code the symbols as character constants or else code the unicode to create the symbols. C = [Tag + "_" + L...
ongeveer 5 uur ago | 0
| accepted
How do I use my data set in an equation?
lb = mean(lm,1); formula = log(lb./lm);
ongeveer 7 uur ago | 0
Received this error, not sure how to fix
M=1:2:11; N=1:2:11; those are length 6 for i=1:length(M) for j=1:length(N) for mi=1:i for ni=1+j ...
ongeveer 7 uur ago | 0
Create contour plot from scatter plot
See https://www.mathworks.com/matlabcentral/fileexchange/38858-contour-plot-for-scattered-data
ongeveer 9 uur ago | 0
Can function [s,h] = silhouette(X, clust, distance, varargin) be run using parfor (parallel computation)?
Sorry, you cannot accelerate it using parallel computation.
ongeveer 10 uur ago | 0
error in concatenating cells
ft_epoch = cell2mat(reshape(ftData728178E.trial, 1, 1, [])); However, if what you are already doing creates NaN then it means...
1 dag ago | 0
What does it mean "/Multiple" after variable name in *.mat file?
The .mat file has been created by an external program not using the official Application Programming Interface. The variable nam...
1 dag ago | 0
Support for NVIDIA RTX A1000
The RTX A1000 has compute capacity 8.6 according to several sites I check. As such, the Parallel Computing Toolbox should be ab...
1 dag ago | 0
| accepted
Error in AWGN Using Integers or scalar doubles
lenna = imread('lenna.png'); the result is almost certainly a uint8 matrix. lenna_gray = rgb2gray(lenna); rgb2gray() of a uin...
1 dag ago | 0
how to convert text file as it was written .m file to call functions?
SS = fileread(NAME_OF_FILE); eval(SS)
1 dag ago | 0
Error using lassoglm>glmProcessData
If you are passing in Weights, at least one weight must be positive. Otherwise: you need at least one row of X to contain finit...
1 dag ago | 0
not enough input arguments
You are trying to run the function by pressing the green Run button. When you run the function by pressing the green Run button,...
2 dagen ago | 0
How to run all the image with format jpg in folder? and save into folder?
dinfo = dir('*.jpg'); filenames = fullfile({dinfo.folder}, {dinfo.name}); nfiles = length(filenames); magnificationFactor = 1...
2 dagen ago | 0
| accepted
Unable to perform assignment because the indices on the left side are not compatible with the size of the right side.
The output of predict(Model2,TeDat_r) will be a vector with the same number of rows as TeDat_r has. But TeDat_r is undefined her...
2 dagen ago | 0
volume calculation from the DelaunayTri(x,y,z) function
DT = DelaunayTri(x,y,z); [~, Volume] = convexhull(DT);
2 dagen ago | 0
Data fiting in Matlab
You have a missing ) in Ypluss . I had to guess about where it goes. y_data = %... U_data = %... B_data = %... mu_data = %.....
3 dagen ago | 0
| accepted
How to get map information from jp2 images ?
You need to run an external program that reads EXIF information from the file... and hope that the information is recorded in th...
3 dagen ago | 0
How to use Matlab to get georeferencing information of a JP2 image?
You need to run an external program that reads EXIF information from the file... and hope that the information is recorded in th...
3 dagen ago | 0
Stop an app designer callback thread like the debugger does?
"It is evident that whenever the user clicks a button in an app designer app, the callback is called in a new thread." No, the ...
3 dagen ago | 0
Warning: Variable appears to change size on every loop iteration (within a script). Consider preallocating for speed.
power = zeros(k, 3); cst = zeros(k, 4); before the while loop.
3 dagen ago | 0
can image tiff convert to grayscale
zipname = 'https://www.mathworks.com/matlabcentral/answers/uploaded_files/1674421/sample.zip'; tfile = fullfile(tempdir(), 'sam...
3 dagen ago | 0
| accepted
automatic change in variable's value during optimisation
You do not do that. It is a truism that during any one call to the optimization routine, that given any particular set of trial ...
3 dagen ago | 0
| accepted
How would I properly go about creating this function?
l = 70*12; %length maxHeight = 12; %maximum height of beam maxWidth = 10; %maximum width of beam minHeight ...
3 dagen ago | 1
| accepted
wait for several system calls to finish
You have to use taskmgr (Windows) or ps (MacOS or Linux) to detect whether the processes are still alive. Note: If you are usin...
3 dagen ago | 0
| accepted
How to use enviwrite in matlab?
A compatible envirwrite is at https://github.com/akayasse/ENVI-read-and-write-for-MATLAB
3 dagen ago | 0
uigetfile Multiselect option not working for single file select
[files, pathname] = uigetfile({'*.xls*'; '*.csv'}, ... 'Select One or More Files', 'MultiSelect', 'on'); if isnumeric(fi...
4 dagen ago | 1
How to detect (programmatically induced) value changes of uidropdown?
I am aware of the ValueChangedFcn callback. However this callback is only executed when the change is made by the user via the U...
4 dagen ago | 0
| accepted
command not found: pip
pip is a python command, not a shell command. !python pip install tensorflow
4 dagen ago | 0
what type of error is this? is this the logical error, simulation error, code error?
TargetDeltaV is not defined. Meanwhile, you assign to DeltaV but do not use DeltaV in the code.
4 dagen ago | 0
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