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Stationary point Code Error. Trying to find stationary points for the equation below. Was having a hard time doing it by hand so tried a code.. getting error for fsolve.
One problem is using zero for any initial parameter estimate, and especially if the parameter is the only element in the denomin...

2 years ago | 0

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How to automate the plotting of numerical data contained in Excel files?
If you have R2018b or later, and each table contains data with numerical variables (excepting the first variable that is treate...

2 years ago | 0

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step response but wrong answer from matlab!
f you plot the step respoonse on the same time scale, the MATLAB plot is the same. See the added fourth subplot — % Transfe...

2 years ago | 0

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search for the position of a number inside a cell (cell with existence of empty rows)
Use ismember (since you have the exact values, otherwise ismembertol) and any (here using the default column orientation, dimens...

2 years ago | 0

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Choosing initial values for fitting experimental data through fminsearch
It would help to have the data. If ‘p(2)’ is supposed to be in the range of about 1, start it near there. Nonlinear paramete...

2 years ago | 0

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Read .raw file
If the file is less than 5 MB in size, use the zip function to create a .zip file for it and then upload the .zip file here. ...

2 years ago | 0

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How to fix "Number of equations greater than number of indeterminates. Trying heuristics to reduce to square system." error.
There are a few problems you will likely want to fix. In the interim, try this — syms x(t) t m = 10; k = 160; % t = 0:...

2 years ago | 0

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Answered
How do I color my orbits based off of Jacobi Constant?
I would use the surf function with your matrix, with 'EdgeColor','interp' and then view(0,90). The contour (and contourf) func...

2 years ago | 0

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interpolation using 2D look up table
See if transposing all of them (use the simple transpose (.')) will work. To see the difference between meshgrid and ndgrid r...

2 years ago | 0

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Legend with multiple columns and problem with alignement for last entry
There does not appear to be anying in Legend Properties that would directly address that problem. The only approach I can think...

2 years ago | 0

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Save stereo audio file
Testing those functions, they both appear to be working correctly — Fs1 = 44100; L1 = 2; t1 = linspace(0, L1*Fs1, L1*Fs1+1)....

2 years ago | 0

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How do I remove leap year data?
I ran your code with the provided data (here, online), however I do not see any leap year days. That aside, something like th...

2 years ago | 0

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plot area between 2 curves, not working
The ‘curve’ vectors each have NaN values, and patch will not plot them. Eliminiate them (I did that here with fillmissing) and ...

2 years ago | 0

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how can I extract values from a struct matrix that contains only one value to make single matrix from it?
Perhaps — % imshow(imread('sagust_kose_hız_degisimi_v.jpg')) LD = load('U_at_right_top.mat') U = structfun(@(x)x.u, LD.U_a...

2 years ago | 0

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Answered
How to chnage the coefficent for transfer function?
What do you want to change it to? The displayed result is the format that the zpk function produces. If you want them otherw...

2 years ago | 0

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How to add an input to the end of an fprintf function
Perhaps this — r = rand; lambda = rand; phi = rand; units = 'mm'; fprintf('Our rectangular coordinates converted to cyli...

2 years ago | 0

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Need help substituting vector variables into symbolic expression
I may be missing something in your problem statement. Is this what you want to do — syms x w1 b1 l1 = tanh(x * w1 + b1); ...

2 years ago | 0

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Interpolating by latitude and depth
The scatteredInterpolant function would be best for this problem. Try this — T1 = readtable('mock_data.csv') FNut1 = sca...

2 years ago | 0

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Put letters as markers in a legend box
Using letters is not part of the linestyle or marker options. I initially tried overprinting the legend with both text and an...

2 years ago | 1

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How do I use fprintf to print to a text file?
Use fopen to create a file identification number, change thefprintf statements accordingly, then use fclose to close it. fid ...

2 years ago | 0

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Presenting in better plot
Use semilogy instead of plot. imshow(imread('untitled1.png')) Alternatively, use plot, then: set(gca,'YScale','log') Bo...

2 years ago | 0

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How to plot an array in 3D?
Add: view(-30,30) after creating the plot. Use whatever azimuth (first eargument in degrees) and elevation (second argumen...

2 years ago | 0

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When trying to fill timetable gaps retime puts everything NaN
That is what the 'fillwithmissing' option does. If you want a different result, choose a different method.

2 years ago | 0

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Fminsearch does not work after increasing maxiter
Following up on my Comment, see if this solves the problem — function dydt = model(t,y, para_fit) L = max(1,L); P...

2 years ago | 0

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Where is the data?
Use fillmissing to interpolate the NaN elements in ‘Values’ — % Load the data filename = 'maunaloa_weekly.csv'; data = readt...

2 years ago | 0

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how to xlimit for 3 different plot in 1 figure?
The plots seem not to have been posted, so I am not certain what you want to do. You would need to set xlim for each one ind...

2 years ago | 0

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I have "step" data and I want value only on the steps
First, detrend the curve, second, find the peaks, last, return the values. Try this — mis = importdata("DATI.csv"); x_mis ...

2 years ago | 1

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Setting legend of a plot
Set the original legend to 'Location','NE' and then use: legend('boxoff') Also, see Position Multiple Axes in Figure if you...

2 years ago | 0

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Find approximation function z=f(x,y) for a 3-dimension set of data
The value of the surface along the ‘x’ axis appears to be increasing linearly, so one option would be to add a term specifically...

2 years ago | 0

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How I have all three error bars in one figure
One opotion is to use the hold function (and also figure) — R1=10 R2=27 R3=10 Rtotalseries=R1+R2+R3 Vs=5 Itotal=Vs./Rtota...

2 years ago | 0