Star Strider
Hic sunt dracones! PROFESSIONAL: Physician (M.D.): Diplomate of the American Board of Internal Medicine; M.Sc. Biomedical Engineering: Instrumentation, Signal Processing, Control, System Identification, Parameter Estimation NON-PROFESSIONAL: Amateur Extra Class Amateur Radio Operator; Private Pilot, Airplane Single Engine Land, Instrument Rating Airplane; Gamer NOTE: I do not respond to emails or personal messages, unless they are about my File Exchange contributions. Time Zone: UTC-7 (Standard); UTC-6 (Daylight Savings/Summer)
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已回答
How to compare two measurement datas from 2 different devices?
It would help to have the data, or at least a representative sample of it. Without knowing more, I would create a grid over t...
How to compare two measurement datas from 2 different devices?
It would help to have the data, or at least a representative sample of it. Without knowing more, I would create a grid over t...
2 days 前 | 0
已回答
Finding peaks and valleys, and associated indexes, of time-shifted noisy sinosidal waves
These data are not eqsy to work with, and there is so much noise that effective filtering is impossible. Also, the data were no...
Finding peaks and valleys, and associated indexes, of time-shifted noisy sinosidal waves
These data are not eqsy to work with, and there is so much noise that effective filtering is impossible. Also, the data were no...
4 days 前 | 1
已回答
Convert the Power Spectrum Data to GRMS
I am not sure what you want to do. I have no idea what 'GRMS' refers to, and a web search dis not provide any relevant informat...
Convert the Power Spectrum Data to GRMS
I am not sure what you want to do. I have no idea what 'GRMS' refers to, and a web search dis not provide any relevant informat...
6 days 前 | 0
已回答
i am not getting the output graph
What operating system are you using? What MATLAB version/release are you using? I had a problem similar to this with Ubunt...
i am not getting the output graph
What operating system are you using? What MATLAB version/release are you using? I had a problem similar to this with Ubunt...
6 days 前 | 0
已回答
asking for buying laptop for matlab
For the essential requirements,see Choosing a Computer to Run MATLAB and Simulink Products. I encourage you to explore that ent...
asking for buying laptop for matlab
For the essential requirements,see Choosing a Computer to Run MATLAB and Simulink Products. I encourage you to explore that ent...
7 days 前 | 1
已回答
reduce mesh quantity in isosurface plot
We have a problem ... I used a script I wrote earlier to extract the text from your .m file to run here. I post all of it he...
reduce mesh quantity in isosurface plot
We have a problem ... I used a script I wrote earlier to extract the text from your .m file to run here. I post all of it he...
8 days 前 | 0
已回答
Fitting 8 equations simultaneously with three parameters
You might be able to use the mldivide, \ function -- Example -- % Eq. 1: 2A+3B+5C-1=0 % Eq. 2: -5A+2B-10C+12=0 % Eq. 3: 9A...
Fitting 8 equations simultaneously with three parameters
You might be able to use the mldivide, \ function -- Example -- % Eq. 1: 2A+3B+5C-1=0 % Eq. 2: -5A+2B-10C+12=0 % Eq. 3: 9A...
9 days 前 | 3
已回答
Force arrays to print to screen without multiplier
Experiment with the format function. Example -- vProduct = 1.0e+03 *[0.0048 0.0076 3.1440 -0.004...
Force arrays to print to screen without multiplier
Experiment with the format function. Example -- vProduct = 1.0e+03 *[0.0048 0.0076 3.1440 -0.004...
9 days 前 | 0
已回答
MATLAB won't invert a function in the Laplace domain...
After running your code (with n=1.1), it seems that the problem is that using a non-integer value for 'n' produces non-integer e...
MATLAB won't invert a function in the Laplace domain...
After running your code (with n=1.1), it seems that the problem is that using a non-integer value for 'n' produces non-integer e...
11 days 前 | 1
已回答
Why doesn't matlab start?
According to the System Requirements, that should probably work. (Note the 'version 22H2' requirement for Windows 10.) Sinc...
Why doesn't matlab start?
According to the System Requirements, that should probably work. (Note the 'version 22H2' requirement for Windows 10.) Sinc...
13 days 前 | 0
已回答
apply colour bar colours to data points
The third and fourth arguments of scatter can control the size and colours of the plotted points. It is also necessary to defin...
apply colour bar colours to data points
The third and fourth arguments of scatter can control the size and colours of the plotted points. It is also necessary to defin...
13 days 前 | 0
已回答
Time to peak using findpeaks
I usually have findpeaks return the indices of the peaks. Your definition of the start time point isnot obvious. I would use...
Time to peak using findpeaks
I usually have findpeaks return the indices of the peaks. Your definition of the start time point isnot obvious. I would use...
14 days 前 | 1
| 已接受
已回答
Discrepancy when plotting step response of two identical transfer functions.
We do not have the original data. I suspect that you are seeing the loss of precision due to using only 4 significant digits ...
Discrepancy when plotting step response of two identical transfer functions.
We do not have the original data. I suspect that you are seeing the loss of precision due to using only 4 significant digits ...
15 days 前 | 0
| 已接受
已回答
tiledlayout("vertical") with multiple columns
I am not certain that tiledlayout can easily do what you want. It might be easier to use subplot instead. That way, you can ...
tiledlayout("vertical") with multiple columns
I am not certain that tiledlayout can easily do what you want. It might be easier to use subplot instead. That way, you can ...
16 days 前 | 0
已回答
Mean of 3D matrix based on range of first dimension
Perhaps something like this -- A = randn(360,360,720); At = A(100:200,:,:); Atm = mean(At, 1); AtmSize = size(Atm) ...
Mean of 3D matrix based on range of first dimension
Perhaps something like this -- A = randn(360,360,720); At = A(100:200,:,:); Atm = mean(At, 1); AtmSize = size(Atm) ...
17 days 前 | 0
| 已接受
已回答
How to add two columns based on conditions
It is easiest to use 'logical indexing' for this. Try this -- intrun = [1 0 1 4; 2 0 1 5; 1 ...
How to add two columns based on conditions
It is easiest to use 'logical indexing' for this. Try this -- intrun = [1 0 1 4; 2 0 1 5; 1 ...
18 days 前 | 0
| 已接受
已回答
Compare two row and select appropriate data
I believe you want the minimum of the two columns. Try this -- Data = array2table(randi(9, 10, 2), VariableNames=["A","B"])...
Compare two row and select appropriate data
I believe you want the minimum of the two columns. Try this -- Data = array2table(randi(9, 10, 2), VariableNames=["A","B"])...
18 days 前 | 0
已回答
Is Helvetica available on every MATLAB platform?
On my Ubuntu 24.04 installation (latest updates), using yur example code, 'Helvetica' is the 12th entry in 'k'. Proportional ...
Is Helvetica available on every MATLAB platform?
On my Ubuntu 24.04 installation (latest updates), using yur example code, 'Helvetica' is the 12th entry in 'k'. Proportional ...
19 days 前 | 0
| 已接受
已回答
Scatter point plot into plot3d or any surface
It would help to have your data. It might not be necessary to do any interpolation if you only want to use those vectors. Ju...
Scatter point plot into plot3d or any surface
It would help to have your data. It might not be necessary to do any interpolation if you only want to use those vectors. Ju...
21 days 前 | 1
已回答
I have a code but am unable to use if conditions with matrix value
I cannot understand what you want help with. If you want to avoid using values that equal 0, one way is to use 'logical index...
I have a code but am unable to use if conditions with matrix value
I cannot understand what you want help with. If you want to avoid using values that equal 0, one way is to use 'logical index...
23 days 前 | 0
已回答
Extracting Respiratory Cycle Duration from RPM Waveform Stored in DICOM Files
Part of the problem is that your instrument is 'saturating', such that the amplitude of the signal exceeds the ability of the in...
Extracting Respiratory Cycle Duration from RPM Waveform Stored in DICOM Files
Part of the problem is that your instrument is 'saturating', such that the amplitude of the signal exceeds the ability of the in...
23 days 前 | 0
| 已接受
已回答
How to correctly find the solution of a system of equations containing trigonometric functions
It would be difficult to plot this since there are so many variables, and it is not obvious (to me, at least) what 1 or 2 variab...
How to correctly find the solution of a system of equations containing trigonometric functions
It would be difficult to plot this since there are so many variables, and it is not obvious (to me, at least) what 1 or 2 variab...
26 days 前 | 0
已回答
Listing values for a specific harmonic line from waterfall figure
By 'harmonic line', I assume you intend frequency, the x-axis coordinate in each plot. A waterfall plot is a specific depiction...
Listing values for a specific harmonic line from waterfall figure
By 'harmonic line', I assume you intend frequency, the x-axis coordinate in each plot. A waterfall plot is a specific depiction...
1 month 前 | 0
已回答
Fatal error starting Matlab 1. time in Ubuntu 25.04
From the Platform Roadmap documentation, R2023a only supports Ubuntu 22.04 LTS. The 25.04 release is not listed for any MATLAB ...
Fatal error starting Matlab 1. time in Ubuntu 25.04
From the Platform Roadmap documentation, R2023a only supports Ubuntu 22.04 LTS. The 25.04 release is not listed for any MATLAB ...
1 month 前 | 0
已回答
How do I use readcell and keep leading spaces within cells
There may be other ways of doing this (and I am not certain that it will work with your Excel fiile), however if you define whit...
How do I use readcell and keep leading spaces within cells
There may be other ways of doing this (and I am not certain that it will work with your Excel fiile), however if you define whit...
1 month 前 | 2
已回答
How do I change column headers in my table
If your immediate problem is naming the variables, perhaps -- Int_force = randn(6,6,28); Force = repmat(["Axial Force";"Shea...
How do I change column headers in my table
If your immediate problem is naming the variables, perhaps -- Int_force = randn(6,6,28); Force = repmat(["Axial Force";"Shea...
1 month 前 | 0
| 已接受
已回答
2D acoustic wave equation with a Perfectly Matched Layer
I'm not certains what this code is supposed to do or the result it's supposed to produce. The problems were that the diff cal...
2D acoustic wave equation with a Perfectly Matched Layer
I'm not certains what this code is supposed to do or the result it's supposed to produce. The problems were that the diff cal...
1 month 前 | 0
| 已接受
已回答
Cross-Coupled System Identification
I am not entirely certain that I understand what you want to do. If you have the input and output data, you have a system mod...
Cross-Coupled System Identification
I am not entirely certain that I understand what you want to do. If you have the input and output data, you have a system mod...
1 month 前 | 0
| 已接受
已回答
create a code for butterworth 4th order bandpass filter without Signal Processing Toolbox
A relatively straightforward presentation stats with (for a fourth-order prototype lowpass filter) -- where is a normalisin...
create a code for butterworth 4th order bandpass filter without Signal Processing Toolbox
A relatively straightforward presentation stats with (for a fourth-order prototype lowpass filter) -- where is a normalisin...
1 month 前 | 1
