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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Feeds
How can I extract the time length (in miliseconds) between two audio signals?
Considering the nature of this problem, probably the best option is to estimate the signal envelops with the Signal Processing T...
alrededor de 10 horas hace | 0
Correcting effects of Humidity on sensors
What sort of correction do you want to do to your data? Do you also have the humidity data? Are there any published ways t...
3 días hace | 0
Making a table from data using rec
Apparently, 'rec' is not a funciton. Here it is simply a vector. I am not certain what 'R' is doing other than keeping a cou...
4 días hace | 1
Approach to computing statistics on a latitude/longitude grid
It would probably be best to use Mapping Toolbox functions for this, since on a world map, the latitude and longitude distances...
6 días hace | 0
representation of a cell array in 2025b
One option is to use the '{:}' representation to see the contents -- Names = {{'abc'},{'def'},{'ghi'},{'jklmnop'}} Names{:} ...
12 días hace | 0
Weird LaTeX result of $\tilde{}$ in R2025b version.
That appears to be what the interpreter now defines as '\tilde'. I thought it might be defaulting to '\widetilde' , however th...
15 días hace | 0
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Gibbs-like behaviour with lowpass on long signals
Your code and results appear to be appropriate. The only change I made here was to add 'ImpulseResponse='iir'' to the lowpass...
16 días hace | 1
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How i can measure magnitude and phase angle of a given waveform? or how i can measure phase difference of two sinusoidal waveforms? please help me
See: Signal Fitting with sine curve (and how to find out the phase shift?) for one approach to this problem.
16 días hace | 0
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Issues creating a scatter graph
Use curly braces {} to access data in a table -- Depth= A{:,4}; Magnitude= A{:,5}; That also avoids using the table2array ca...
17 días hace | 0
Trying to figure out a algorithm to filter out some data, since I dont have any additional toolbox.
The filloutliers function is a core MATLAB function (no toolboxes required) introduced in R2017a. Using it on your data -- ...
17 días hace | 0
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I know line 4 goes wrong,but I don't know how to correct it. If anyone know it,I firmly hope to get your advice.
Your code looks correct to me. You set the initial condition to be 'y(0)==2' and that is what dsolve returned: From the plot,...
17 días hace | 0
Plot serial time data from excel file
Your data does not look like the data in the image file. I made some changes (additions) to your code to plot only the 't' an...
18 días hace | 0
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How to I plot a graph from this data
Use curly braces {} to get datafrom a table -- Radius = A{:,1}; Density= A{:,2}; VPV= A{:,3}; VSV= A{:,4}; QK= A{:,5}; QM...
18 días hace | 1
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Read Excel file in Matlab and plot data
Use curly braces {} to access data in a table. data = readtable('HUAM1709.041_v2.xlsx') % return T = data{:,1}; T = second...
19 días hace | 0
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MATLAB 2025a new fonts. How do I use them.
I do not have that font in Ubuntu 24.04, MATLAB R2025b. You can select whatever font you like in the various MATLAB settings ...
22 días hace | 0
Extracting data from .txt file
Without having a .tb file to work with, and your description of it as a text file, I would use the readtable function with the F...
24 días hace | 0
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matlab liscence issue in linux
See: Fedora 42 - Unable to launch MVM server: License Error: Licensing shutdown for one solution.
24 días hace | 0
Files deleted on MATLAB Online and now on my local drive
Contact Support There is always a possibility that they are not actually lost from MATLAB Online, and can be recovered. (I h...
27 días hace | 0
How to extract data from a figure as a text file
You have all the information available already in (x1,y1) and (x2,y2) and the findpeaks output. That is apparently all the in...
27 días hace | 1
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...
30 días hace | 1
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...
alrededor de 1 mes hace | 1
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...
alrededor de 1 mes hace | 0
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...
alrededor de 1 mes hace | 1
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...
alrededor de 1 mes hace | 0
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...
alrededor de 1 mes hace | 3
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...
alrededor de 1 mes hace | 0
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...
alrededor de 1 mes hace | 1
Why doesn't matlab start?
According to the System Requirements, that should probably work. (Note the 'version 22H2' requirement for Windows 10.) Sinc...
alrededor de 1 mes hace | 0
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...
alrededor de 1 mes hace | 0
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...
alrededor de 1 mes hace | 1
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