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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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...
2 dagar ago | 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...
3 dagar ago | 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...
5 dagar ago | 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{:} ...
11 dagar ago | 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...
14 dagar ago | 0
| accepted
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...
15 dagar ago | 1
| accepted
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.
15 dagar ago | 0
| accepted
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...
16 dagar ago | 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 -- ...
16 dagar ago | 0
| accepted
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 dagar ago | 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...
17 dagar ago | 0
| accepted
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 dagar ago | 1
| accepted
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 dagar ago | 0
| accepted
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 dagar ago | 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...
23 dagar ago | 0
| accepted
matlab liscence issue in linux
See: Fedora 42 - Unable to launch MVM server: License Error: Licensing shutdown for one solution.
23 dagar ago | 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...
26 dagar ago | 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...
26 dagar ago | 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...
29 dagar ago | 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...
ungefär en månad ago | 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...
ungefär en månad ago | 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...
ungefär en månad ago | 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...
ungefär en månad ago | 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...
ungefär en månad ago | 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...
ungefär en månad ago | 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...
ungefär en månad ago | 1
Why doesn't matlab start?
According to the System Requirements, that should probably work. (Note the 'version 22H2' requirement for Windows 10.) Sinc...
ungefär en månad ago | 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...
ungefär en månad ago | 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...
ungefär en månad ago | 1
| accepted
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 ...
ungefär en månad ago | 0
| accepted
