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
58
of 250.225
REPUTATION
2.462
CONTRIBUTIONS
1 Question
937 Answers
ANSWER ACCEPTANCE
100.0%
VOTES RECEIVED
198
RANK
of 17.383
REPUTATION
N/A
AVERAGE RATING
0.00
CONTRIBUTIONS
0 Files
DOWNLOADS
0
ALL TIME DOWNLOADS
0
RANK
of 103.885
CONTRIBUTIONS
0 Problems
0 Solutions
SCORE
0
NUMBER OF BADGES
0
CONTRIBUTIONS
0 Posts
CONTRIBUTIONS
0 Public Channels
AVERAGE RATING
CONTRIBUTIONS
0 Highlights
AVERAGE NO. OF LIKES
Contribute at least one answer each month for 12 consecutive months
Awarded to Mathieu NOE on 02 Oct 2021
Answer 10 questions that were unanswered for more than 30 days
Awarded to Mathieu NOE on 08 Jul 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
Is there a way to extract the numeric data from these chars?
hello you can do that (will simply combine minutes and seconds into only seconds time vector) but as your original data has r...
circa un'ora ago | 0
| accepted
Convert audio file in a frecuency matrix
hello FYI, this is a code to do spectral analysis you can use some basic low pass / hgh pass / notch filters as well enjoy !...
1 giorno ago | 0
Zeigler-Nichols reaction curve
hi probably you wanted to do this : t=0:0.01:3.0; opensys=tf(5,conv([1 18],[89 87])); y_opensys=step(opensys,t); plot(t...
4 giorni ago | 0
Need to find "Knees" in Stress Strain curves where slope change abruptly
hello this would be my first suggestion of course the results may be sensitive to the threshold used in my method (based on ...
4 giorni ago | 0
| accepted
For loop on multiple sensors
hi sure it's possible for ck = 1:5 max = max(sensors(:,ck)); disp(max); end
5 giorni ago | 0
| accepted
Make a grid (1 x1) out of scattered insitu data and take the average of each grid that has data
hello this would be my suggestion, based on dummy data (left picture) - result appears in right picture clc clearvars %...
5 giorni ago | 0
| accepted
Loop Rate of Change with Negative Values
hello I assumed that the time axis in your file is as folows : first (top value) is the oldest and last (bottom) is the newest...
5 giorni ago | 0
| accepted
How can i generate coefficients (Num, Deno) for allpass filter?
hello try this : function [b,a]=allpass(n,Fst,Fed,mag,Fs) %Creates an allpass filter % %Syntax: % >>[b,a]=allpass(n,Fst...
5 giorni ago | 0
How to import files in bulk and loop over them
hello to start... an example below to show how to loop over directories and load in natural sorting order the files in each fo...
5 giorni ago | 0
| accepted
Loading variables from different folders containing subfolders in loop
hello an example below to show how to loop over directories and load in natural sorting ordre the files in each folder clc c...
5 giorni ago | 0
| accepted
Highlight peaks/dents in a heatmap imagesc()
hello a very simple code that combines surf and contour (will not draw a circle but maybe it's still a valuable solution) [X,...
7 giorni ago | 0
| accepted
lsqcurvefit is undefined in MathLab version R2007b
hello FYI, you can do basic curve fitting with fminsearch - without the optimization toolbox clc clearvars x = [0.9 1....
8 giorni ago | 0
| accepted
i am trying to code a high shelf filter with an input(.wav) audio signal . I am a student im doing this for my final year project....kindly professionals give me solution
hello as an appetizer , please read the attached txt file and see how it's implemented in the m file (filters.m) for your sp...
8 giorni ago | 0
Determine the Bode diagram or a transfer function with input output data without tfest
hello this is a better code ; a better transfer function estimate is based on the auto power spectra and cross spectrum betwee...
8 giorni ago | 1
| accepted
Why is the magnitude spectrum spreaded over certain frequency range instead of line spectrum in FFT?
hello I took the 3rd data and used my usual tool and could get the two frequencies clc clearvars option_notch = 0; % 0...
12 giorni ago | 1
Help with for loop and if else statement
hello here you are . Q andy must be indexed in the loop (Q(k) , y(k)) only one Q variable suffice for all cases - no need...
12 giorni ago | 1
I have a bunch of named test data with some missing specimens. Want to perform mathematical operations on said data automatically.
hello this is my suggestion ... I created a list of files with missing files (could be a different scenario for each group) t...
12 giorni ago | 0
How to insert and analyze as signal a column from a txt file.
hello and welcome in this forum ! here a starter - how to list and import multiple txt files - after remains to implement your...
12 giorni ago | 0
How to create a distance between labels in plot?
hello haya I have introduced a bit of randomness in the dz so that the labels will be a different heights dz = 0.2+0.5*rand(...
12 giorni ago | 0
| accepted
Include legends based on column names in for loop
hello see my little demo below to use the table varibales names as legend the csv data file is attached clearvars clc %...
13 giorni ago | 0
Plotting 2D XY values as a 3D radial contour plot
hello my 2 cents suggestion clc clearvars data = importdata('data.txt'); x = data.data(:,1); n = 200; r = linspace(mi...
14 giorni ago | 0
| accepted
filtfilt problem when trying to compensate for delay
hello the Hd filter was not supplied so I suggest here some standard filter (butterworth lowpass or bandpass) or smoothing tec...
14 giorni ago | 1
| accepted
smoothen curve plotted using discrete points
hello this would be my suggestion - others methods I tried have not been successfull flowrate = [ 0 93 100 120 140 160 172...
17 giorni ago | 0
| accepted
how to use loop in function to plot
hello try this I modified your function because x and y are both outputs theta = linspace(0,2*pi,100); figure(1) [x,y...
17 giorni ago | 0
Repeated sequence of numbers in a vector
maybe this M = [1,2,3,4,5,7,2,5,3,6,1,2,3,4,5,1,2,3,4,5,1,2,3,4,5,7,4,1,2,3,4,5,1,2,3,4,5,7,2,1,2,3,4,5] Ms = sprintf('%d',M)...
19 giorni ago | 0
How to load numbers from a text file to a .mat file?
hi maybe this (I assumed you want each individual value stored in a cell) the cell array can be of course saved to a mat fil...
19 giorni ago | 0
Finding out the minimum value position of a matrix
hello try this your answer is in r_final and c_final a=[1 2 3 4 5 10;2 3 5 6 1 12;2 6 4 5 7 16;10 2 1 4 5 20;2 3 1 4 9 12] ...
19 giorni ago | 0
| accepted
How to differentiate a noise signal.
hello again I think your model was correct only the solver parameters could be more adapted - now I forced the solver to use ...
19 giorni ago | 0
| accepted
How to read an .SRT file in order to extract data ?
hello Elias try this, hope it helps %% read one file clc clearvars filename = 'EXAMPLE.txt'; a = readlines(filename);...
21 giorni ago | 0
| accepted
Playing sound using 4 channels or converting 4 channels to two
Hello Alex seems to me that none of your codes does actually mix the two songs, here you simply create a 4 channels audio fro...
21 giorni ago | 0
| accepted
