Answered

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 ...

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 ...

8 days ago | 0

Answered

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...

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...

8 days ago | 0

Answered

Cannot read .xslx file

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

Cannot read .xslx file

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

9 days ago | 0

Answered

Plotting an Inverse Laplace Function

If you have the Control System Toolbox — % (s + 100000) 147573952589676412928 14757395258967641292800000 % ----------------...

Plotting an Inverse Laplace Function

If you have the Control System Toolbox — % (s + 100000) 147573952589676412928 14757395258967641292800000 % ----------------...

9 days ago | 0

Answered

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 ...

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 ...

9 days ago | 0

Answered

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)...

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)...

9 days ago | 0

| accepted

Answered

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)...

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)...

9 days ago | 0

Answered

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...

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...

10 days ago | 0

| accepted

Answered

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 ...

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 ...

10 days ago | 0

Answered

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...

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...

10 days ago | 1

Answered

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 ...

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 ...

11 days ago | 0

Answered

Why am I getting an error when running this R2024a example in R2023b?

The area function was introduced in R2024a, according to the documentation.

Why am I getting an error when running this R2024a example in R2023b?

The area function was introduced in R2024a, according to the documentation.

11 days ago | 0

| accepted

Answered

Add zero padding to fft

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

Add zero padding to fft

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

11 days ago | 0

| accepted

Answered

shifting of resonant frequency

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

shifting of resonant frequency

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

12 days ago | 0

Answered

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 ...

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 ...

12 days ago | 0

Answered

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...

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...

12 days ago | 0

Answered

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 ...

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 ...

13 days ago | 0

| accepted

Answered

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. ...

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. ...

14 days ago | 1

| accepted

Answered

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 =...

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 =...

15 days ago | 1

| accepted

Answered

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...

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...

15 days ago | 1

Answered

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 = ...

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 = ...

15 days ago | 0

| accepted

Answered

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...

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...

16 days ago | 1

Answered

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...

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...

16 days ago | 0

Answered

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...

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...

16 days ago | 0

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Answered

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...

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...

16 days ago | 0

Answered

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...

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...

16 days ago | 0

| accepted

Answered

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...

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...

17 days ago | 0

Answered

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...

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...

17 days ago | 0

Answered

Extracting certain set of points from a 3D plot

I would use the contour function for this. Example — [X,Y] = ndgrid(-3:0.1:3); f = @(x,y) exp(-(x.^2+y.^2*3)*0.75); Z = ...

Extracting certain set of points from a 3D plot

I would use the contour function for this. Example — [X,Y] = ndgrid(-3:0.1:3); f = @(x,y) exp(-(x.^2+y.^2*3)*0.75); Z = ...

18 days ago | 0

| accepted

Answered

Reduce the number of peaks from findpeaks command?

The findpeaks function has a number of name-value pair arguments that you can use. The two I use most often are 'MinPeakPromine...

Reduce the number of peaks from findpeaks command?

The findpeaks function has a number of name-value pair arguments that you can use. The two I use most often are 'MinPeakPromine...

18 days ago | 0