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Why do I keep getting "Array indices must be positive integers logical value"
In general that error comes from trying to index an array with something other than a positive integer or a logical variable. So...

5년 초과 전 | 0

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Phase Shift Sawtooth Wave
if you just want to shift it so that it starts at (0,0): tri = T_amp*sawtooth(T_freq*ft, .5) + T_amp; Note that with the above...

5년 초과 전 | 1

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How to determine median pixel intensity for each pixel from x number of pictures
Suppose your images are each in a mRow by nCol array and you have numImages total number of images. If you put all of the images...

5년 초과 전 | 0

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how to plot magnitude and phase spectrum? my output function is
If you have the control system toolbox you could do something like: % define a discrete time system z^-5+z^-4+z^-3+z^..1 with a...

5년 초과 전 | 0

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How can you find the poles of a steady state system using c2d and the sampling frequency ?
Suppose you have a continuous plant model g and you discretize it with the sampling period ts % discretize gd = c2d(g,ts) %...

5년 초과 전 | 0

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Loops vs. Vectorization
It may be useful for you to know that for example M = [3 5 7] == [2; 3; 4;] % row vector == column vector gives a matrix 3×3...

5년 초과 전 | 2

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Plot Root Locus for PD-Controller
I don't think you can do it directly with the rlocus command which is just for a variable overall open loop gain. One way to do...

5년 초과 전 | 0

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How can I implement lsqcurvefit function on my equations?
From your description, it sound like you want to find the solution to a system of 5 equations (in I assume 5 unknowns). In this ...

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finding the mean based on a specific value in other column
Lets say you have put your data into an array X. Find a logical index where the rows match your criteria using: criteria = [52...

5년 초과 전 | 0

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How to programmatically change tunable masked parameters while a simulation is running?
I would like to programmatically change masked parameters while a simulation is running. I have made the parameters "tunable" ...

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Getting directly range of value from MATLAB table?
I'm not sure what you mean by not using indexing. In case this helps here is one way to do it. Suppose you have a table T, with ...

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How do you find the best path in a grid or matrix of dimensions MxN?
You should be able to write a recursive function to do this. The function would provide the next row and column to move to give...

5년 초과 전 | 1

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How do I assign a number to an image in a cell array?
If you have a number of characteristics and don't want to have some elaborate encoding for how these are all specified I would p...

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Error "Function definitions are not permitted in this context" in matlab R2014a
You can not define functions on the command line. Open up a new file and edit it there On the MATLAB menu bar HOME>New>Function...

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Plotting outputs at certain simulation time
The exact details depend upon what format you are using to save your Simulink output. It can be saved as a Simulink dataset, an ...

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Graph behaviours in Simulink
I don't think you should be using the derivative block. I don't see that in the original diagram. Also it makes no sense to diff...

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How do you pull select columns from dozens of .csv files in a directory and make one long vector with all the values?
% I'll assume that your files are named follwing some meaningful pattern, e.g. data01.csv, data02.csv, ...You can adapt using yo...

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How to draw a histogram of my data?
I'm not really sure what you are trying to make a histogram of. It looks like you just want to know how many equally spaced valu...

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How to plot 3D surface from 2D array?
There is also a MATLAB function called streamtube https://www.mathworks.com/help/matlab/ref/streamtube.html which seems closely ...

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how i can import specific rows from excel and than use that row in equations MATLAB .
You can use the matlab command readmatrix to get the data in from Excel (type doc readmatrix on the command line for details) T...

5년 초과 전 | 0

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discontinuous x axis plot
I don't think there is a MATLAB command for this but there are many file exchange submissions that should help you https://www....

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Solving simultatious equations with inequalities
If you have the optimization toolbox you can use fmincon for this. Please type doc fmincon on the command line for further detai...

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Add data to .csv file using matlab
In MATLAB put the data into a table array. Then use writetable with the 'WriteMode','Append' property value pair. Please see htt...

5년 초과 전 | 0

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How to sort based on two columns
You should be able to use sortrows for this. Please type doc sortrows on the command line for further documentation

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While loop not working in MATLAB app designer callback function
You probably have a scoping issue. Shared values are typically stored variable names such as app.myVariable To give any more sp...

5년 초과 전 | 0

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Create a series of vector with different name
I would suggest rather than naming your subvectors, you reorganize your data to put it into a matrix where each column is one of...

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Deconvolution of a polynomial and exponential function
Your overview of what you are trying to do is helpful, but I think a lot more details are needed to help with the MATLAB impleme...

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While loop word problem
You will need to add the details but you probably want to do something like this % set some parameters runHours = 12; % number...

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What else can I do to speed up evaluation of this function?
You can get determine where you are spending time using MATLAB's profiler https://www.mathworks.com/help/matlab/matlab_prog/prof...

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How do i make a uipanel with checkboxes return information to my script?
I have attached a modified script to generate your ui, which I have called checkboxGo. Note that in this I have used a simple l...

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