# Mathieu NOE

### Hutchinson

Last seen: Today Active since 2015

Followers: 5   Following: 0

Engineer - mechanices /ekectronics / signal processing Average matlab user for 20 years now. Professional Interests: signal processing, adaptive control, noise and vibration processing

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To plot one stem with multiple values for data of different months.
hello @Amjad Iqbal I modified a bit your code added one line in the first for loop number_of_data_thismonth(k) = numel(...

3 days ago | 0

Find specific points of increase within multiple different data sets
hello try this... hope it helps - though I did not draw vertical lines but you have to start and ending points coordinates. I...

3 days ago | 0

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Need help for Influence line plotting
hello I believe there is no mistake in the code simply you have a fairly crude spatial resolution (fixed to 0.5 m in the cod...

4 days ago | 0

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is my code logically correct? will i get the same output when i do it manually?
hello I wondered if the exercise was more to prove that decimating then resampling (by the same factor) would give (almost) th...

4 days ago | 0

First Order Ogden Stress Strain Plot
hello I believe parentheses are missing for the last term % Stress calculation for compression stress_comp = (mu1/alpha1) *...

8 days ago | 0

Mean shift clustering - issue with finding the center of my clusters
Now probably my best contribution so far , and I post it here with maybe the hope that you will find it interesting enough to ac...

9 days ago | 1

how to count a sequence of data arrays with cut off?
hello why not simply this ? % example 1 cnr_all=[2.33 2.00 1.60 1.59 1.99]; cut_off=1.50; [~,N] = min(cnr_all - cut_o...

9 days ago | 1

graph multiple excel or csv files
hello try this if you have lot of excel files and you want to be sure they are sorted correctly (what the regular dir does ...

10 days ago | 0

Find minimum values based on unique number
hello the provided mat file contains 492 different profiles (and not 147) my suggestion so far : load('matlab.mat') pr...

10 days ago | 0

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Translate and rotate a curve
hello Mads like this ? load('pqfile.MAT') % remove NaN and correct for size mismatch A(isnan(A)) = []; F(isnan(F)) = []...

11 days ago | 0

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Subtractive Baseline-correction
hello I was first a bit puzzled when you mention the baseline is made of the first 10 samples - but after several readings it ...

11 days ago | 0

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how to delete nan values from array columns without losing data from other columns
ok, so this is now the main dishes.... have first tried this code on the first data file , will adapt to your new files as soo...

11 days ago | 0

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Mean shift clustering - issue with finding the center of my clusters
hello Marco seems that your issue is simply because the function works for row oriented data see those lines in MeanShiftClus...

12 days ago | 1

autocorrelation plot without the grid of lines
hello you can remove the grid by specifying grid off after the plot Mdl = arima(AR={0.75,0.15},SAR={0.9,-0.5,0.5}, ... ...

12 days ago | 0

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how to make distance affect on attenuation factor?
hello again try this corrected code : [inwave,fs]=audioread("anechoic_voice.wav"); %LOW-PASS FILTER% % Define filter spe...

12 days ago | 0

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Help creating RMS Window
hello here some demo code FYI % dummy data n = 1000; Fs = 100; dt = 1/Fs; t=(0:n-1)*dt; y = max(0.707,abs(cos(t))+0.1*ra...

12 days ago | 0

How can I remove inverted repeat pairs of strings from a table?
hello Paul this would be my suggestion attached your data simply pasted in a text file hope it helps clc out = readcell(...

19 days ago | 0

How to remove unwanted region in a graph
hello see filloutliers , it was made for you Detect and replace outliers in data - MATLAB filloutliers - MathWorks France I...

22 days ago | 0

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Findings the parameters from the time series
hello here you are there is still a doubt in my mind for the third (last ) iteration for R3 according to your excel file th...

23 days ago | 0

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Find data from txt file
Simply using the suggested methods , you can access your DT data this way I simply created two data files from you post I u...

25 days ago | 0

How to seperate a superimposed sinusoidal wave from a signal
hello try the code provided below I found that the sinus signal frequency is probably around 0.5 and not 1 Hz therefore I u...

25 days ago | 1

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Signal Analyzer Lowpass filter overshoots input signal
hello again so here you can see your signals (in time and frequency domain) before and after low pass filtering (I used here fi...

25 days ago | 0

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Trying to ubderstand the power distribution in fft plot
hello the total power of the fft spectrum equals ~100W pow_spectrum_total = 99.9502 but your fft spectrum spread it on mul...

25 days ago | 0

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How to plot isosurface of for a wide range of values
as @Paul suggested, we can define several levels and display them on the same plot just having some fun with colors and transp...

26 days ago | 0

Plateau followed by one phase decay
hello a code based on the poor's man optimizer (fminsearch) no special toolbox required % data x = 0:0.5:20; y = [-0.137...

26 days ago | 0

Converting a three-column set of data to xyf matrix suitable for a contour plot
hello see example below, the x,y,z are dummy data - use your own data instead % create somme dummy data z = peaks(20); ...

26 days ago | 0

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How to interpolate and smooth across values in a matrix, while ignoring NaN values?
hello just for your information, if you have a recent matlab release you could use fillmissing2 function scan = [0.3 0.4 0....

29 days ago | 0

How to find the distance between two points along a curve?
hello try this th = linspace(-pi/2, pi/2, 100); R = 200; X = R * sin(th) ; % X-coordinates Y = R * cos(th) ; % Y-coordi...

29 days ago | 1