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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Extract the information of inside and outside of a contourf
Tthey are in ‘pippo1’ . In order to extract them, you need to know the level. The ‘pippo1’ matrtix is arranged as: pippo1 ...
circa 18 ore fa | 0
Problem with time series analysis function using detrended fluctuation analysis
How does this differ from How to loop through cell array and apply script to each double? that you did not follow up on, instead...
circa 20 ore fa | 0
Reading a text file using readtable, Matlab stubbornly refuses to accept dates in anything but US-format
You need to pass the options structure to readtable. Perhaps something like this — type('Dave_2024_07_26.txt') opts = d...
circa 22 ore fa | 0
| accettato
How to loop through cell array and apply script to each double?
The only code in your ‘edit.m’ file is the ‘dfaedit’ function that wants as arguments ‘file_name’, ‘plot_flag’, ‘outfile_flag’, ...
circa 22 ore fa | 0
Adding sigstar to grouped bar graph
I am not certtain what you are asking, and you did not post your MATLAB release. (Itt would help to have your datta, the code y...
1 giorno fa | 0
contour plot problem Z must be at least a 2x2 matrix
Anotther option, using the scatteredInterpolant function — x=[80;100;90;90;90] y=[4;4;2;6;4] [X,Y] = meshgrid(x,y); % Polly...
2 giorni fa | 0
| accettato
islocalmax('flat selection') selecting 0 value points
In the lower plot image, if you are referring to the collection of orange asterisks before the start of the variable section (fo...
2 giorni fa | 0
Fit meta data to a custom equation
@Yang Hu — Your regression equation essentially produces a linear fit to your data. I ran selected columns through the genetic ...
3 giorni fa | 0
I don't know what this means
I always use unzip by unzipping it into a variable. That would be : uz = unzip('MerchData.zip') for this file, and then pr...
4 giorni fa | 0
scale x,y and z axis to match JPL Database
I’m not certain how to use that site, so I don’t know what the plots look like. Probably the function that will best do what ...
5 giorni fa | 0
Representation of Gabriel's Horn
If you want it to look more like the image you posted in your question, one option is to use the daspect function.. It allows yo...
5 giorni fa | 0
| accettato
Running a large array
See the documentation section on Tall Arrays (introduced in R2016b). I have rarely needed to use them, so I have little exper...
5 giorni fa | 0
How to make bar plot with group mean and add scatter plot on top to demonstrate samples within group?
Apparently the group means are the heights of the bars. Try this — MC1 = randn(50,2)*10 + [80 81]; ...
5 giorni fa | 1
| accettato
how to do a contour plot using function handle?
Provide arguments to ‘M’ and it works — T=linspace(0,2*pi,100); d = linspace(0,2*pi,100) ; [X,Y] = meshgrid(T,d);...
5 giorni fa | 1
| accettato
Eliminate the long number appearing in symbolic calculations
You can conttrol the number of digits displayed by including a second argument (here 7) to your vpa call — syms J1 term = ...
8 giorni fa | 1
| accettato
Finding a a path between two points on a 3d surface that proceeds through lowest value points.
I am not certain what you wantt, and I doubt there is a way to impoose the energy constraints on the path. (The shortestpath fu...
8 giorni fa | 0
function find() sometimes doesn't work properly
With Floating-Point Numbers you need to use a tolerance, so with find, usually one of the approaches in tthe second loop will wo...
9 giorni fa | 1
| accettato
Problem of rotation of surface on xy plane
I am not certain what you want. Yopur data do not appear to define a surface, instead they appear almost linear. An alternat...
9 giorni fa | 0
How do I pass a dynamic number of output variables to a function?
You can define as many outputs to a function as you want. In the call to the function, you can selectt specific outputs using ...
9 giorni fa | 0
how can solve this problem : Conversion to cell from double is not possible.
Perhaps — X = fillmissing(X(:), 'nearest'); .
10 giorni fa | 0
Help me generate better spectrogram data using Matlab?
I am not certain what problem you’re having. What information do you want to display? There are actually two Signal Processi...
10 giorni fa | 0
How can I plot a matrix using pcolor and colorscale as log?
According to the ColorScale documentation, that property should set the colorbar scale as well. I would not use pcolor. The...
11 giorni fa | 0
Interpolate y and y using a 3D vector with similar length
To do the relatively simple first interpolation, use the interp2 function. Tto draw the surface plot, the best option is the ...
12 giorni fa | 0
| accettato
Genetic Algorithm with a graph
I am not certaiin what you want, however creating an options structure using optimoptions and including the name-value pair 'Plo...
12 giorni fa | 0
Derivation of noisy signal through Savitzky-Golay
The displayed signal has high-frequency noise that (were you to calculate its Fourier transform) would be sufficiently distant f...
13 giorni fa | 0
I enabled fft function in oscillioscope and it saved the data as FFT amplitude (dBV) and frequency domain how ever I want my time domain and ampltude signals original data.
You cannot reliably invert a Fourier transforom unless you also have the phase information. Lacking the phase information, you ...
13 giorni fa | 2
| accettato
I want to plot RMSE from mat file but it gives error
One option is to use the cellfun function (keeping ‘two’ as a cell array). The other option is to use the cell2mat function to ...
14 giorni fa | 0
| accettato
Rotating a line plot to obtain a 360-degree color map
Itt would help to have the data. It also appears that the line is not the same everywhere (it may be part of a matrix), altho...
15 giorni fa | 0
How to manually edit located peaks using findpeaks function?
I (almost) always use the 'MinPeakProminence' name-value pair for this sort of problem. Only in the case of significant hyperka...
15 giorni fa | 0
Match columns and fill datasets
Using the accumarray function tthis can be done in one line — File_1 = [1 1 1 1 1 ...
15 giorni fa | 0
| accettato