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how to write Text file usiNG MATLAB
You forgot to put in the arguments as data: clc; clear; Excel= xlsread('receiverlocations.xlsx','points') ; x= Excel(:,1)';%...

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How to represent a 2D plot using color plot
It is a bit more complicated than simply using surf, since you don't have 2D data, just a vector. There are probably other ways ...

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App Designer Drop Down Options from Folder
'always updating' is a tricky concept. You probably don't want to check for new files every milisecond. I would suggest looking ...

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Save matrix created within app designer
If you use fprintf you have full control over the format in which your data is written. I tend to suggest avoiding save/load whe...

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How to call multiple functions that connected each other with a single GUI push button?
Just put everything you want to happen in a single function. And stop with the habit of including clc,clear all,close all. Yo...

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for loop, change matrix dimensions
In general you're better off using a separate logical array to mark which rows should be deleted and doing the deletion in one g...

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Deblurring an Image using inverse filtering
A bit of data exploration shows that you have quite an outlier in your image: figure(3),clf(3) histogram(m_deblur) set(gca,'Y...

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how to plot 2 curve with together
doc hold doc subplot Or even the documentation of plot itself: direct link.

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3D surf issue
You are only filling a vector of Z, not the entire plane. Make sure you have a Z value for every value of X and Y. If you post (...

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Temporary variable must be set inside parfor before it is used
Because Matlab must be able to guarantee that the value of a variable at the end is not dependent on what the last iteration is....

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how do i make a plot from a data table with a random number of entries
Use arrays instead of numbered variables. You see how this code is much less repeating and easier to see what is happening where...

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"Unable to perform assignment..." Indices size error
The source of the issue is a bit earlier in the code: the code that is supposed to find the dominant eigenvalue doesn't work as ...

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Obtain matrix with YDIR reverse
Since reversing the y-direction is mostly equivalent to flipping the sign: B=[A(:,1) -A(:,2)];

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How to concatenate a row of variable names and a double?
If you want to mix data types: that's not going to be possible. Each variable in Matlab can only be single type, so something li...

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How do I plot distribution of time lags using histogram with a smoothed line?
h.BinCounts contains the height of each bar and h.BinEdges can be used to find the bin centers. If you want to smooth the result...

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Passing variables between GUI's and invalid object or handle
The setappdata function also accepts uifigure handles, so you need to use that as input: app=struct('self',uifigure); %% seta...

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How to convert a text file to 0's and 1's
If you have a master-list you can use ismember to create a logical vector line by line. If you need an example, you should post ...

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Treasure Hunt Game MATLAB
I would propose a different tactic: use the map itself to keep track of the remaining gold. Your current method is fairly confus...

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i want to plot a certain number of a function
A surface (or plot3) would maybe make more sense, but here is what you asked for. Ideally you would use an interpollation inside...

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How to limit calculation precision?
You could round the end result. This will of course not replicate any rounding errors. In general calculations will run at the ...

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Discussion


What is missing from MATLAB #2 - the next decade edition
Meta threads have a tendency to grow large. This has happened several times before (the wishlist threads #1 #2 #3 #4 #5, and 'Wh...

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Question


What is missing from MATLAB #2 - the next decade edition
Meta threads have a tendency to grow large. This has happened several times before (the wishlist threads #1 #2 #3 #4 #5, and 'Wh...

presque 6 ans il y a | 39 réponses | 5

39

réponses

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How do I show my fprintf of for loop in textbox GUI
You should use sprintf to create a char array that you can display in your text box. If you want to add lines instead of overwr...

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Callback Push Button Execution
A callback has the object handle as the first input and the eventdata as the second input. You can use the object handle to retr...

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Creating a dropdown menu in inputdlg box in MATLAB
You can create new figure and put a uicontrol element on it, or you can use listdlg. If you need help implementing my first sugg...

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how to download matlab 2020b for 32 bits system?
Matlab R2020a for 32 bit windows doesn't exist. The last release with a 32 bit version was R2015b.

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Interpolation using two variables
doc interp2

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If I want to change the middle element of the array n, from n1 to n6, step wise, what code has to be used ?
If you replace n1 with n_{1} (and do the same for the other 5), you can use a loop. Don't use numbered variables, use arrays ...

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Undefined function or variable 'datatip'
The datatip function was introduced in R2019b, so you will have to find an external implementation (or write it yourself), or up...

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How can I select a specific line in a text file base on a specific string in that line?
Read the entire file and split by newline character (e.g. with my <https://www.mathworks.com/matlabcentral/fileexchange/68780-re...

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