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Bora Eryilmaz

MathWorks

Last seen: 14 jours il y a Actif depuis 2011

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How to graph the basic reproduction number R0 against two parameters on a 3D plot with planes?
The equations and plots in the article look inconsistent. For example, Eq. 3.21 seems to be missing a 1/mu term when they replac...

3 mois il y a | 1

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Arrange Vector in descending order
If x=[0,3,4,2,1] then y=[4,3,2,1,0]

8 mois il y a

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How to make MATLAB always start with the previous directory when using the menu?
Yes, as long as you start MATLAB from a shortcut icon on your desktop, you can set the "Initial Working Folder" setting in the P...

10 mois il y a | 0

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Bandpass Filter Command Question
You need to use brackets, not parentheses: y = rand(200,1); Fs = 100; % Sampling rate, e.g., 100 Hz d = bandpass(y, [1,30], F...

11 mois il y a | 0

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Is there a function like movsum which simply gets the values in a given sliding window rather than summing them?
If you have access to the Predictive Maintenance Toolbox, you can use the phaseSpaceReconstruction command: x = [1 2 3 4 5 6 7 ...

11 mois il y a | 0

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how to print datetime in fprintf
You can convert datenum data to datetime data and set its format to the one you desire: d = datenum(2023, 4, 13); dt = datetim...

11 mois il y a | 0

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Error Brace indexing is not supported
Your imageFileNames variable is not a cell array, so you cannot use brace indexing with it. It is a long char array with words s...

11 mois il y a | 0

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Plotting x-axis time in dd hh mm ss format
You can use the datetime data type for the x-axis values and adjust the date/time format as you like: now = datetime; x = now ...

11 mois il y a | 0

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Matlab get transfer function from Simulink
Yes. It is called linearization. If you have access to the Control System Toolbox and/or Simulink Control Design, you can use li...

12 mois il y a | 0

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Stepinfo for time delayed systems
s = tf('s'); G = (1/(s+1))*exp(-2*s) % Step response information step(G) stepinfo(G) % Time delay of the system G.Inpu...

12 mois il y a | 1

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The lyapunovExponent function in the Predictive Maintenance Toolbox gives incorrect result when the input signal has angular frequency a multiple of \pi
When the signal is periodic, with no noise, the nearest neighbor of each data point in the signal on the phase plane will be ess...

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Matlab built-in function not identified
coefTest is not a "function". It is a "method" of the LinearModel object/class. So, in order to call it, you need to create a li...

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I am confused about why my code doesn't lead to a fitting result.
If you print out the exception inside the catch block, it will tell you what the error is. catch ME ME fprintf('...

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Argument to dynamic structure reference must evaluate to a valid field name Error occurs when using properties
Looks like you might be trying to access the content of RTD before populating its cells with the right table content first. % T...

environ un an il y a | 0

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How do I know the length from the center of the object to the vertical axis edge and the horizontal axis edge?
You can do something along these lines, where the location of the centroids seems like what you want: I = imread('image.jpeg');...

environ un an il y a | 0

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How can I save figures when created in a loop?
Use the saveas command to store the figure in a folder. If the folder is not there, you can use the mkdir command to create the ...

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Create non-visible message dialog box
One option is to not create all four dialog at once. Just create the dialog that needs to be visible at the time and store its h...

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Chaîne


Urban Informatics
IoT dashboard demonstration for the Urban Informatics course.

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How to clear workspace from a function?
Functions do not keep their variables across calls to them unless a variable is specifically defined in the function using the "...

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Comparing two curve fits (using AIC?)
The lsqcurvefit returns the residual norm of the fit. The model that has the least residual norm would be the "best" one by this...

environ un an il y a | 0

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Multiply structure by a constant
You have to cycle through the individual fields of the structure: s = struct('a', [1 2 3 4], 'b', -1) for f = fieldnames(s)' ...

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Plotting date and time
tdata = { ... '04/07/2022 18:00', ... '05/08/2022 19:30', ... '06/08/2022 11:30' }; ydata = [10, 20, 15]...

environ un an il y a | 0

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closest value to zero excluding the first one?
load('var.mat') [~,I] = sort(abs(dis_y), 'ascend'); % Closest value to 0: dis_y(I(1)) % Second closest value to 0: dis_...

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I am getting the message "execution of script matlabtb as a function not supported"
See the note in the documentation page: https://www.mathworks.com/help/hdlverifier/ref/matlabtb.html "Enter this command in the...

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How to arrange input fields straight below each other using inputsdlg?
You won't get perfect alignment, but you can pad the prompt strings with empty spaces: prompt = {... 'ParticipantID'; ... ...

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Unable to read data from text file in matlab
The file your are looking for is probably not there, or at least, not on the MATLAB path. See what fid is: if it is -1, then you...

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Why doesn't the for loop work?
p = isprime(p) gives you a logical vector, similar to p = [true true false true] When you try to assign i to p(i) it converts ...

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Error: Not enough input arguments
There are probably other array concatenation issues in your equation definitions, but regarding your current issue, remove the c...

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How to input corresponding data from separate matrices
A = [1 2 3 4 5 6 7 8 9 10]'; B = [ 2 3 1 7 9 10 4 6 5 8; 12 43 64 94 27 58 64 13 90 74]'; % Iterate over every element of A ...

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Add one year to date
You can use the datetime and years commands to do what you want: date = '2022-01-05'; d = datetime(date) d1 = d + years(1) s...

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