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Find Area under the curve as a non negative
It would help to have the data. Perhaps selecting everything with both x and y coordinates greater than zero, and then integr...

2 years ago | 0

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Transparency in scatter plot
It would help to have representative data. I suspect the vector you are using as ‘C’ has very low positive values (perhaps on ...

2 years ago | 0

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readtable() ignores variable names and loses data when "extra" cells contain values
‘How can I tell readtable() to ignore any extraneous cells to the right of the main data that starts in A1?’ Without a file t...

2 years ago | 1

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Importing data from outside matlab directory?
Probably the easiest way is to use the fullfile function to generate the complete path to the file. To access other files in th...

2 years ago | 0

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Acceleration of code by replacing two nested for-loops
This could be difficult with your code because of the multidimensional nature of ‘B’, however the usual approach is to create m...

2 years ago | 0

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Viewing a house in MATLAB
The walls and roof needed duplicates with some offsets to plot correctly. Other than that, the patch arguments are set up to be...

2 years ago | 0

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How to develop "a model" from a given m-file of regression analysis?
If your data are the same as in your earlier post, you can get all that information from the Curve Fitting Toolbox result. Th...

2 years ago | 2

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how to plot a diagram that includes many excel data?
One approach is to read the files in to separate cell arrays, then vertically concatenate them, and then choose the ‘Absolute T...

2 years ago | 0

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Replace Before A Specific Character
Assuming that you want to replace it with '9999' — diffStr="4026y 4 mo 13d 9h 26m 20.145s" val = num2str(9999) diffStr = reg...

2 years ago | 0

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How can I plot the linear variation?
Calculating the llinear regression was straightforward, however calculating and plotting the regression plane was something of a...

2 years ago | 1

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Creating multiple cylinders in different coordinates
Perhaps this — [X,Y,Z] = cylinder(1,20); cm = colormap(turbo(10)); figure hold on for k = 1:10 ofst = randi(9,2);...

2 years ago | 0

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How to find corresponding frequencies for frequency magnitudes in FFT analysis
I am not certain what you want from these calculations. I used my own fft call (since I found it difficult to understand your...

2 years ago | 0

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Curve fitter, how to start?
Try this — T1 = readtable('data.xlsx'); Var1 = str2double(cellfun(@(x)regexp(x, '\d*', 'match'), T1.Var1)); T1 = removevars(...

2 years ago | 0

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Table not aligning properly
Use fprintf instead of disp — ThePriceisRightWheel function ThePriceisRightWheel() clc clear RunTotal = 100000; Cont...

2 years ago | 0

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Showing information on a plot
Retrieving and showing all that information is not straightforward, however it is definitely possible. Use stepinfo to get the ...

2 years ago | 0

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How do I extract a difit from a binary string
Tweaking your code — A=45; B=dec2bin(A) lb=length(B); C=strings(lb,1); % D=convertCharsToStrings(B); for i=1:lb C(i)...

2 years ago | 0

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Answered
Deleting 3rd column of all cell double inside a variable than combine the data together
I limited the run to the first 20 ‘Pr_error_2’ cells because the full set required more time than the 55 second limit here permi...

2 years ago | 0

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How to plot a function using a variable that is calculated over a range?
When in doubt, vectorise every multiplication, exponention, and division. With those changes (and nothing else) it works — ...

2 years ago | 1

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Ones function printing out
The fprintf call will execute and print even if there is a semicolon at the end of that call. X1 = rand(3,5); fprintf('Size ...

2 years ago | 0

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generate average numbers between two numbers inside a vector
One approach — V = [3.4789; 0; 0; 3.3535; 0; 0; 3.2398; 3.2263; 0; 0; 0; 3.0846; 0; 0; 2.9815; 0; 2.9430; 0; 2.9055]; r0 = [2...

2 years ago | 0

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How to add a legend for multiple figures with horizontal and south location
I am not certain what you want. Try this — % Please how can add one legends for the subplots. I want the legend % location...

2 years ago | 0

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How to fix the error
The error message is clear. Put the function at the end of the file and the code works — % Set random seed value rng(123)...

2 years ago | 0

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Plotting spectrograph from spectrum analyzer data
Yiour data needed a bit of tweaking. Tehe times in the ‘TimeData’ matrix are contiguous, so they can be converted into a vector...

2 years ago | 1

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Biphasic Pulse signal with FFT
The problem was that ‘wholeSignal’ had 60 more elements than ‘t’ so I artificially shortened it: wholeSignal = wholeSignal(1:n...

2 years ago | 0

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How to count how often a variable returns to zero and then increases from zero
One method to find the first instance of a zero value is to use the strfind function. You can use it again to determine the ind...

2 years ago | 0

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How do I compute averages for NOAA SST data?
The easiest way to do this is to use the accumarray function — T1 = readtable('ersst5.nino.mt...-20.ascii.csv', 'VariableNami...

2 years ago | 0

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How can i calculate the area under two curves that intersect?
Integrate them using trapz then do what you want with the results (keep them as they are, add them, add their absolute values, ...

2 years ago | 1

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Answered
The legend option called interpreter latex does not display the latex symbols correctly
You need to put dollar signs ($) around the string you send to the LaTeX interpreter — plot(1:10,1:10,'DisplayName','$\eta_i$'...

2 years ago | 1

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Answered
Transfer function extraction from frequency response
You will need to use the System Identification Toolbox for this. Then: ResponseData = mag.*exp(1j*phase); data = idfrd(Res...

2 years ago | 0

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how to use the hanning window to smooth the photon signal
That appears to be some sort of spectrum. I am not certain what you want to do with it, however windowing it is not likely to p...

2 years ago | 0