Mathieu NOE
Hutchinson
Engineer - mechanices /ekectronics / signal processing
Average matlab user for 20 years now.
Professional Interests: signal processing, adaptive control, noise and vibration processing
Statistics
RANK
70
of 242,849
REPUTATION
1,738
CONTRIBUTIONS
1 Question
692 Answers
ANSWER ACCEPTANCE
100.0%
VOTES RECEIVED
141
RANK
of 16,985
REPUTATION
N/A
AVERAGE RATING
0.00
CONTRIBUTIONS
0 Files
DOWNLOADS
0
ALL TIME DOWNLOADS
0
CONTRIBUTIONS
0 Posts
CONTRIBUTIONS
0 Public Channels
AVERAGE RATING
CONTRIBUTIONS
0 Highlights
AVERAGE NO. OF LIKES
Answer 10 questions that were unanswered for more than 30 days
Awarded to Mathieu NOE on 08 Jul 2021
Contribute at least one answer each month for 6 consecutive months
Awarded to Mathieu NOE on 02 Apr 2021
Accept 1 answer given by other contributors
Awarded to Mathieu NOE on 18 Mar 2021
100 of your answers have been accepted
Awarded to Mathieu NOE on 17 Dec 2020
Provide your first answer ever to someone else's question
Awarded to Mathieu NOE on 09 Jun 2020
Download any 10 unique submissions
Awarded to Mathieu NOE on 01 May 2020
Publish your first review
Awarded to Mathieu NOE on 09 Oct 2019
Content Feed
How to move line plot to be above a stacked bar chart?
hello this would be my 2 cents suggestion using ylim : code : indexValues = [repelem(6, 33), repelem(5,6), repelem(4,6),...
11 hours ago | 0
Index in position 2 exceeds array bounds (must not exceed 2)
hello just fixed minor issues on following two lines %%%SHOW ITERATION INFORMATION disp(['Iteration : ' num2str(it...
12 hours ago | 0
How to change the color of my plots
hello I modified a bit your code to get this result : .code : close all clear all avalues=0.3:0.005:1; N=200; d=0.03...
12 hours ago | 0
How to generate a sequence of acoustic levels (dB) of a particular frequency (let say 50 Hz) of an acoustic signal?
hello seems your looking for a tool doing spectral analysis check this : clc clearvars %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%...
4 days ago | 0
I have created a function that relies on a guess, and now I need to create a for loop for that function that plugs in the answer it gives back in to the "OLD" original guess.
hello yes , your "recursion" is not really working this works Once you're satisfied with the code , you can reùove / comme...
4 days ago | 0
How to choose stopband ripple and passband ripple of filter for High pass filter
hello why not start with simpler filters like butterworth or bessel filters ? . If you don't have any specific requirement ...
4 days ago | 1
| accepted
How can I handle the signal of the data read from the serial port
hello if you are able to store the data in a file (txt or mat or ..) you can adapt this code I developped for audio processing...
4 days ago | 1
How to add low frequency noise to the signal?
hello this is a simple demo showing a sine signal corrupted by a low frequency noise . You can adjust the parameters to your o...
4 days ago | 0
| accepted
Reading multiple non-sequential *.txt files containing both text and numbers
hello this is an example that shows how I could read one then multiple text files (and applying a natural name sorting) you ...
5 days ago | 0
| accepted
pulse train with gaussian pulses in an irregular interval
hello a quick and dirty demo , not using gauspuls but that could be easily done also clc clearvars f0 = 50; % pulse freq...
5 days ago | 0
| accepted
Time Series Partitioning of EMG data
hello see example below : samples = 40000; buffer = 2000; data = rand(samples,1)+10*((1:samples)/samples)'; % noisy ramp...
5 days ago | 0
how can I know the sence of voice that was recorded in a special place?
hello I interpret your request about how to analyse your records - assuming you can use audioread from matlab , here 's a cod...
5 days ago | 0
How to save multiple output?
hello I would recommend to use structures (indexed) like in this example a =randperm(18); b=reshape(a,9,2); vals=b; [m,n...
6 days ago | 1
| accepted
use regexp to extract index
hello my 2 cents suggestion using readlines and working on strings : this simple code can be expanded / modified according t...
7 days ago | 1
| accepted
How to update title of plot without it "wiggling"
hello my 2 cents suggestion : plot(rand(1,10),rand(1,10)) t = repmat([0 10],1,5); for k = 1:length(t) above10= t(k) -...
10 days ago | 0
Determine less than in for loop
hello does that reflect what you wanted to do ? clc clearvars % x = round(100*rand(1,10)); x = [11 96 0 77 ...
10 days ago | 0
| accepted
read a .txt file
hello have you tried to work with tables - using readtable ? filename = '0-3000.txt'; T = readtable(filename); C = table2c...
10 days ago | 0
| accepted
Error while plotting the surface
hello you need to create a grid from the 1D array x and y . This is done via meshgrid code : clc clearvars x = 0:1:100;...
11 days ago | 0
for loop stack the data
hello my suggestion if M is (like here) a 1D array so the col saved is always one; this can be removed from the code if ne...
11 days ago | 0
| accepted
How to set level values of a variable in a nc file
hello again3 so I tried to a few things to get the min and max points of the data and display them (the big crosses) I am stil...
11 days ago | 1
| accepted
How to add correlation factor to the plot?
hello see my little example below (your code does not show how you get the linear model fit data) clc clearvars % dummy...
12 days ago | 0
read special cell in excel file
hello again so here a small code to extract the lines where the 2 numbers in row 2 and row 3 are below a given threshold. FYI ...
12 days ago | 0
| accepted
Finding end of words in signal
hello you should first compute the envelope of your signal (for example using the function of same name envelope) simply do a...
12 days ago | 1
| accepted
How to adapt a function to a change of two points?
hello Daniel this is my suggestion - a simple anamorphosis of the curve along the vertical axis (= a vertical shift and a multi...
12 days ago | 0
| accepted
How do I create array of a function with for loop?
hello it's not the best coding practice, but it works ... clc clearvars % dummy data X1 = rand([424,412]); X2 = rand([4...
13 days ago | 1
How to plot power of wavelet transform.
hello again I simply run your code using the appropriate package the package and results are in the zip attached # Cross...
13 days ago | 0
| accepted
how to receive power values in and out the cone of influence in wavelet transform.
hello I assume this is related to your previous post How to plot power of wavelet transform. - MATLAB Answers - MATLAB Centr...
13 days ago | 0
The graphs of position, velocity and acceleration are wrong.
hello I didn't find any mistake in your original equations , but I am lazy and I found your code quite long and complicated......
13 days ago | 1
| accepted
Saving multiple plots into one folder with the specified figure name in code to jpg form
hello why not simply add this line of code after each figure : adjust the resolution to your needs (here 140 DPI) print('-dj...
14 days ago | 0
Attempting to detrend and remove noise from surface roughness data
hello my prefered function for smoothing data is smoothdata , but there are other options example below : clc close all ...
14 days ago | 0
