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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polar/plot incompatibility
The original coordinate system predominates, and the subsequent plot call respects that.. You are plotting two points, and . ...
environ 6 heures il y a | 0
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...
3 jours il y a | 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...
5 jours il y a | 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...
6 jours il y a | 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...
9 jours il y a | 1
representation of a cell array in 2025b
One option is to use the '{:}' representation to see the contents -- Names = {{'abc'},{'def'},{'ghi'},{'jklmnop'}} Names{:} ...
14 jours il y a | 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...
18 jours il y a | 0
| A accepté
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...
18 jours il y a | 1
| A accepté
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.
18 jours il y a | 0
| A accepté
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...
19 jours il y a | 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 -- ...
19 jours il y a | 0
| A accepté
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,...
20 jours il y a | 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...
21 jours il y a | 0
| A accepté
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...
21 jours il y a | 1
| A accepté
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...
22 jours il y a | 0
| A accepté
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 ...
25 jours il y a | 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...
26 jours il y a | 0
| A accepté
matlab liscence issue in linux
See: Fedora 42 - Unable to launch MVM server: License Error: Licensing shutdown for one solution.
26 jours il y a | 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...
30 jours il y a | 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...
30 jours il y a | 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...
environ un mois il y a | 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...
environ un mois il y a | 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...
environ un mois il y a | 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...
environ un mois il y a | 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...
environ un mois il y a | 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...
environ un mois il y a | 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...
environ un mois il y a | 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...
environ un mois il y a | 1
Why doesn't matlab start?
According to the System Requirements, that should probably work. (Note the 'version 22H2' requirement for Windows 10.) Sinc...
environ un mois il y a | 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...
environ un mois il y a | 0
