Fit gaussian to X-Y data (one X column, multiple Y column), for each Y column from an excel file.
One approach — T1 = readtable('X-Y_gauss_matlab.xlsx') figure plot(T1{:,1}, T1{:,2:end}) grid gausfit = @(b,x) b(1) .*...

9日 前 | 0

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how can I delete some rows from a matrix
This creates a new matrix with only the odd rows from the original matrix — A = randi(9, 10,3) Anew = A(1:2:end,:) See the d...

9日 前 | 0

draw the amplitude-frequency characteristic curve of a particular transfer function
Using the Control System Toolbox — Ts = 1; s = tf('s'); Gv = 1/(s*Ts) * (1 - exp(-s*Ts)) figure bodeplot(Gv) grid ...

9日 前 | 0

Why are all of my axes flipped in this figure?
Without your data I cannot run your code. The documentation states that the roll, pitch, and yaw angles have to be in degrees...

10日 前 | 0

The R2024a version of readtable has no problems with it. Does this seem to be correct? T1 = readtable('Agora_I_4985.xlsx', '...

10日 前 | 0

Plotting an Inverse Laplace Function
If you have the Control System Toolbox — % (s + 100000) 147573952589676412928 14757395258967641292800000 % ----------------...

10日 前 | 0

Interpolate line data to grid matlab
Use the interp1 function — x = [0.0 5.0]; y = [1.0 3.8]; figure plot(x, y) grid hold on Ax = gca; xtix = Ax.XTick ...

10日 前 | 0

Matlab Legend Function dose not work at all
There are no errors when I run your code — x = linspace(0,pi); y1 = cos(x); plot(x,y1) hold on y2 = cos(2*x); plot(x,y2)...

10日 前 | 0

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Symbolic solution is too long
I added the simplify calls and let this run for a while in MATLAB Online — clear clc tic syms t y1(t) y2(t) y3(t) y4(t)...

10日 前 | 0

Displaying error bars on scatter plot (Bland-Altman plot)
We are missing ‘mean_diff’ and ‘std_diff’ . Using rand to correct for that for now. The errorbar plot needs 2 to 4 arguments...

11日 前 | 0

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I want to find two missing parameters in an ODE system of equations using regression/optimization in MATLAB
I do not completely understand your problem. If y9ou have values for all the variables as functions of time from the beginning ...

11日 前 | 0

Peter H Charlton's Pulsewave Analyse and ppg-beat tools are not working well.
The best way to design a filter is to first calculate the Fourier transform of the signal, and then use that to design the frequ...

11日 前 | 1

Create mean y values by multiple groups in one graph
Try this — T1 = array2table([1 2000 45 1 0 0 0 1 2001 56 1 0 0 0 1 2002 23 1 0 0 0 1 2003 56 1 0 0 ...

12日 前 | 0

Why am I getting an error when running this R2024a example in R2023b?
The area function was introduced in R2024a, according to the documentation.

12日 前 | 0

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Let the fft function add it to the original time domain signal vector (it pads it at the end) by specifying the second argument ...

13日 前 | 0

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shifting of resonant frequency
I have no idea what ‘xlimit’ refers to, however the resample function could work.

13日 前 | 0

How to draw a line in a bar chart in complete x area
The easiest option is to use the yline function — cat=categorical({'a','b','c'}) data = [37.6 24.5 14.6]'; errhigh = [2.1 ...

14日 前 | 0

Help me determine why the Isolocalmax doesn't work after applying MinProminence.
You need to check the variable values. I cannot run this here (the Run feature is currently not working, at least for me, alt...

14日 前 | 0

when using ode45 with the for loop, should I put the initial conditions inside or outside the for loop?
It is difficult to understand what your code does. If you are changing the parameters of the differential equations inside the ...

14日 前 | 0

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How to extract a for loop output after each iteration?
Perhaps — u(j,m,p,t) = ... ; in an appropriate place in the loop. This matrix could be huge and difficult to deal with. ...

15日 前 | 1

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Creating three shaded regions in a loglog plot
Perhaps something like this — R = 8.31; N = 6.022e23; Dia_air = 3.5e-10; P = 101325; Kn_1 = 0.1; Kn_2 = 10; Dia_al =...

16日 前 | 1

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How to display a symbolic formula without substitutions "where"?
@reincornator — I usually put this: sympref('AbbreviateOutput',false); just after the syms call in my code to prevent all the...

16日 前 | 1

Make a surface (interpolated colors) plot with contour lines over it
You can use a surfc plot with tweks to the contour plot, and an appropriate view call — [X,Y,Z] = peaks(250); figure hs = ...

17日 前 | 0

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How to get x value for a given y value in a interp1 figure?
To get both of them — vv=[0.190934428093434,0.277000826121106,0.477820361464529,0.703789686451856,1,0.703789686451856,0.477820...

17日 前 | 1

How can I use the Basic Fitting tool to create a trendline on different scatterplots within the same figure?
An easy way to do this is to use the lsline function. If you need the parameters of the line, they are relatively straightforwa...

17日 前 | 0

How to smoothly interpolate signal data using another datasets timestepping
Yes. If you have the Signal Processing Toolbox, use the resample function. You can define the sampling frequency of the resamp...

17日 前 | 0

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EEG data preprocessing and filtering.
It seems to me that one or both filters are not designed correctly. The filtered result does not appear to be similar to the in...

17日 前 | 0

My scatter plot points aren't showing up on my main line plot.
Perhaps something like this — [s2max,s2idx] = max(s2); [s3max,s3idx] = max(s3); figure hold on scatter(t(s2idx),s2max,'o...

17日 前 | 0

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Can not calculate coefficient Accurately
Only request the coefficients of ‘X2’ and then divide ‘EQ_01(2)’ by ‘X1’ — syms X1 X2 Disp = X1*(4*X2 - 4*X1 + 1) [EQ_01, T...

18日 前 | 0

Is there any example of Range-Speed Response Pattern in MATLAB or how can i crate one?
See the Phased Array System Toolbox documentation section on Range and Doppler Estimation and then choose the appropriate sectio...

18日 前 | 0