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Stretching a rectangle over a date axis
"How can I fix this?" Use RULER2NUM, which converts from the ruler values (e.g. DATETIME) to numeric, correctly accounting for ...

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.mat file no longer shows variable selection GUI when loading in MATLAB R2025a
Make sure that this is selected: Settings => MATLAB => General => Confirmation Dialogs => Show Import Tool dialog for importing...

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Can such an index weight graph be generated using matlab? If possible, what preparations need to be made? Thank you
https://www.mathworks.com/matlabcentral/discussions/tips/854391-these-pretty-chord-diagrams-were-all-made-by-matlab

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Is Matlab 2021b still in support?
"A user is asking if Matlab 2021b is still in support..." Yes. TMW never really stops supporting their products (AFAIK if you h...

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How do I add the sum of 1st 3 elements of a vector in a for loop?
a = [32,19.41,11.77,7.14,4.33,2.63]; m = 3; s = sum(cumsum(a(1:m))) or s = a(1:m)*(m:-1:1).' or s = dot(a(1:m),m:-1:1) or...

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How to plot specific rows from table
Simple Solution: Instead of trying to plot two tables, it would be much better to plot the table content. It just requires chan...

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Cannot set text to UIaxes because cannot set position since xaxis is made of datetime
The basic approach is to supply an x-value which is a DATETIME object: figure() X = datetime(2025,6,1:6); Y = rand(1,6); plo...

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Merging multiple dictionaries with cell arrays
A = dictionary({"type","value"},{"temporary",1}); B = dictionary({"color"},{"blue"}); If you want to create a new merged dicti...

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How does Matlab extract the three columns of data from the ".out" file output by Fluent? What is the code? The attachment file is the data.out
unzip data.zip T = readtable('data.out', FileType='text', Range=3, Delimiter=["(",")"," "], ... VariableNamingRule='preser...

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ODE event callback function does not update the solution vector
"The cause is the way the nargout function handles the event and callback functions." The cause is because you are testing anon...

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How to add a title with mixed italic and normal text with Tex interpreter?
There might be better ways, but this seems to work: title("\it Italic title part 1 \rm\bf and \it Italic title part 2", 'In...

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How to set variable names using Readtable with hierarchical categories (Excel file with merged cells / multiple header rows)
In lieu of a sample data file I created my own (attached) which looks like this (not all columns shown): If you must keep tha...

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Is the Ordering of the Output from combinations() Documented, Repeatable, and Sensible?
1. "Is the ordering of the output rows from combinations documented?" Implicitly. The COMBINATIONS description states "These c...

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Cell array Filtering when using readlines
Do not store lots of scalar strings in a cell array, doing so makes processing them harder: https://www.mathworks.com/help/matl...

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Why READTABLE skips the first line ?
"Why READTABLE skips the first line ?" Possibly because all of the text are shared strings, which perhaps confuses the READTABL...

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Using CurrentPoint in UIAxes in AppDesigner with timedate x axis
Because all of the data are returned in one array any datetime values are converted into a numeric equivalent (i.e. to provide o...

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More unexpected behavior multiplying an array with a double
"I am getting unexpected results when I muliply an array by a double" It is not unexpected, because your data are not what you ...

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How can I get unique entries and their counts and place back into the table?
"I think is due to (x) not being defined or non existing. " No, it is because you invented some syntax when defining the anonym...

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MATLAB loads file it cannot find
"How is it possible, that MATLAB can load a file that it cannot find?" Because of what you did: "...the folder where the files ...

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Read .txt file with dots in filename
"All my current tries using for example "load" or "readmatrix" failed since Matlab always assumes everything after the first dot...

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How to sync Matlab file location and current pwd of command window?
Do NOT use CD for this. This is exactly what the MATLAB Search Path is for: https://www.mathworks.com/help/matlab/matlab_env/w...

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Matrix size error using integral
"which makes no sense since I'm multiplying scalars." Nope, you aren't. "Why is this?" Because you are multiplying vectors. T...

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Problem with formatting operators - textscan
txt = '26 mins 2013-09-17 09:01:45, 29 mins 2013-09-18 16:53:12, 33 mins 2013-09-19 18:24:27,'; Directly obtaining the intege...

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why textscan can't parse the time like this
"why textscan can't parse the time like this" Because you have a delimiter right in the middle of your datestamp. Clearly that ...

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how can i get the values of y1, y2? i am only getting the graph.
Return them as function outputs: https://www.mathworks.com/help/matlab/ref/function.html https://www.mathworks.com/help/matlab...

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How to arrange elements in one array to match the position of elements in a second array?
You could find the mapping with ISMEMBER: https://www.mathworks.com/help/matlab/ref/double.ismember.html A = [1,5,3,2,4,4,2,2,...

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Hi, my loop function is not working and giving me index error in my member stiffens matrix. any idea what is the issue? thank you
% define coordinates of each nodes Coord_nodes = [0,0; 10,0; 10,10; 0,10]; % define connection of each element Connect_elemen...

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installing MAT-file version 7.3
From the SAVE documentation: save("tmp\wavedata_0301","wavedata","-v7.3"); % ^^^^^^^ https:...

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Select first three elements of double inside cell array
C = {[56,54,36,35];[58,56,55,36];[89,60,56,45]} D = cellfun(@(v)v(1:3),C,'uni',0)

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How can I import multiple .out files in a single folder as separate tables or arrays?
unzip reports P = '.'; % absolute or relative path to where the files are saved S = dir(fullfile(P,'vxw*.out')); for k = 1:nu...

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