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Why do I recieve error when doing sinc function
If you want to plot the sinc value for a range of values then you need to pass it a vector of values. So for example: x = lins...

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Doubt about finding the nearest values between array and a matrix
You are overwriting the value of ID with each pass through your loop, so you only see the value for the last pass. If you want ...

environ 4 ans il y a | 1

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How do I solve an ODE of the form y'=ay^3 +by^2 +cy +d?
The ode solvers, e.g. ode45 require a function handle which will evaluate the current value of the derivative given the current ...

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How to select multiple excel files with the uigetfile function?
[file_list,path_name] = uigetfile('*.xlsx','MyDialog','MultiSelect','on'); You were missing the dialog name argument, so it was...

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How to convert time column into a regular array?
t = seconds(A_time.Time - A_time.Time(1))

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"Unable to find or open 'Filename.txt'" error in MATLAB 2022a for files from a shared network drive.
Sometimes Windows loses the connection to the mapped drive. Can you still open the folder in Windows File Explorer? Sometimes it...

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Accessing appdesigner objects properties from a function
First, I'm not sure why you would want to just have a single button pushed callback for multiple buttons. Why not just break th...

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Question


Is applying a binary operator (+,-,*,/) to char arrays supported by MATLAB or just a "trick"
I recently came across the use of the following way to obtain the individual digits of a binary number as an array of doubles, f...

environ 4 ans il y a | 5 réponses | 2

5

réponses

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Find the Minimum Combination of Sum
If I understand what you are trying to do, I think this might work for you A = rand(100,1); % define matrix which can be mul...

environ 4 ans il y a | 1

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I want to plot graph between partial pressure of ammonia and Length but it has error.
Note that in your assignment for pNH3 the index is n, not n+1 so it only get assigned values up to the max value of n set by th...

environ 4 ans il y a | 0

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calculate the minimum probability
Say you have three matrices of the same size A,B,C then you can find the minimum as you describe using D = min(min(A,B),C)

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Why doesn't Newton's method calculate the correct temperature
Is there a reason you are using your own solver here rather than the MATLAB fzero (for function of one variable) or fsolve for s...

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Simulation of random walk
It looks like you already "store the j values into the array node_visited. So it looks like you should be doing your summaries...

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Check an entire matrix against each value of another matrix
If I understand what you are looking for, I think this will do it in a very simple way c = intersect(a,b) >> a = [4 3]; b = [...

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How can the points of a scatter plot placed on a new matrix?
Assuming you mean by the first point, second point, etc in the scatter plot their order of appearance from left to right (along ...

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How to find indices in a vector satisfying a condition for a minimum consecutive number of entries
Here's one approach. You could shorten this up a little by combining some of the individual statements into more complicated on...

environ 4 ans il y a | 1

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Check numbers in a 5x5 array
You can also do this without any loops using MATLAB's intersect function which lists the common elements between two arrays. Hin...

environ 4 ans il y a | 0

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Can someone help me writing this equation in matlab, I appreciate,..
Here is an example where I have supplied some arbitrary values for P,N, phi and omega. You can modify with the values you actual...

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Drop Down Button (App Designer) return index of repeated elements
Here's a skeleton of the logic regarding using unique. You will have to adapt details regarding getting the users selection etc....

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Dimensions of arrays being concatenated are not consistent error .
There is a problem with your approach, which is setting the initial condition for the second block (the one that the switch is ...

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how can i negative all value in a matrix except diagonal?
Am = -(A - diag(diag(A))) + diag(diag(A))

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Algorithm to calculate trajectories from a vector field
The trajectories you are seeking are solutions to a set of ordinary differential equations with initial conditions given by the ...

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how to save some variables created in a loop
You need to provide a vector to collect your values in, so something like this numIterations = 10; % put total iterations here ...

environ 4 ans il y a | 0

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Tell the user something is wrong
If I understand your question, I think that you may find that you can use MATLAB's errordlg function can do what you are looking...

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How to convert cell to matrix
Side stepping the issue a little bit, I can read in your data file perfectly as numerical values and not use cell2mat at all usi...

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sensitivity analysis generate random integer values
Sound like you are looking for the MATLAB randi function, you can get details by typing doc randi on the command line

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Save each output step in rows in a larger matrix
You have a number of problems with your code. The main problem, if you want to save the results of each iteration in variable Q...

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representing the correlation function
In your code the sin wave signal will have an amplitude of one, and the stadard deviation of the noise signal will also be one. ...

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Struggling to plot the data over timestamps!
I copied and pasted your data into an .xlsx file (attached here) and ran your commands (only modified to have the .xlsx file in ...

environ 4 ans il y a | 0

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How to create an interactive graph to show how data changes when one factor in an equation is changed
Here is a good example of building an app in app designer with graphs that change as values of parameters are changed by the us...

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