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
64
of 243.779
REPUTATION
1.976
CONTRIBUTIONS
1 Question
772 Answers
ANSWER ACCEPTANCE
100.0%
VOTES RECEIVED
160
RANK
of 17.054
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
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
how to write a loop that finds the best fit value for each given input pair and plot all the resulted points?
hello Anitha so yes there was a small bug in your equations when you do the computation of A, you fliiped the terms (vs1.^2...
alrededor de 4 horas ago | 0
| accepted
How to plot a marked point in a graph and connect it with other points?
hello this is a first attempt the outer lines was fairly easy to plot the two inner lines , it's a bit coded just to show ...
1 día ago | 0
| accepted
Load matrix from .mat files
hello try this : data_all = []; for ci = 1:10 filename = ['P' num2str(ci-1) '.mat']; data = load(filena...
1 día ago | 0
i have two different array holding some numbers, e.g; i have an array P containing 5 elements and other Q containing 6 elements. I want to find out P*Q matrix
P= [1 2 3 4 5 ]; Q=[8 9 5 7 3 4]; T = (P'*Q)'
1 día ago | 1
how to solve error using integral
hello integral works on function (handles) not arrays f is an array , not a function handle so use trapz to do numerical int...
1 día ago | 0
I have m*n matrix. I want keep only those rows whose atleast one element is greater than any specific value such as 1.
hello try this m = 3; n = 5; A= 1.15*rand(m,n); threshold = 1; a = A>threshold; rows = find(any(a, 2));
1 día ago | 0
Sum specific elements of an array without using loop
hello Alex try this A = [1;0;0;0;0;1;1;1;0;0;0;1;1;0;0;0;0;0;0;1;1;1;0;0;1;0;0;1;0;0]; % 30x1 Array tic res = zeros(1,10);...
1 día ago | 0
| accepted
Half Power Method for Vibroacoustic Dataset
hello Daniel the frequency vector is missing the half power method is described here : Microsoft Word - 41FC527E-54FA-00270...
2 días ago | 1
How to calculate the response time of an instrument based on a second?
hello Kofial I did a few mods in your code ... but the response data of the instruments has little to do with the graph of the...
2 días ago | 0
There is an apparent error in line 4, and this code only ran once
hello simply b and m are not yet defined when you do in line 4 : c2 = b*exp(t2*m); the code should be organized like this ...
2 días ago | 0
How do I output the values of a function in a vector string to plot a graph?
hello maybe this ? (tested OK on my side) clc clearvars A = 1; df = 100000; F = df/4; % n = 2^3; n = 2 ^ 3: 2^ 4 : 2 ^...
2 días ago | 0
Curve Fitting Tool - Power Fit
hello even without the curve fitting toolbox you can get a good match using fminsearch : sol = 1.4912 0.2802 clc...
2 días ago | 0
readcell command undefined?
hello again Amit i think I recognize this line of code... :) I believe readcell was introduced around R2018 - so if you have...
2 días ago | 0
| accepted
how to find the sample space of two or more peaks within a power delay profile
hello again this would be my suggestion to pic the two highest peaks inside each data bins , which are distant at least by 4 sa...
3 días ago | 0
| accepted
How to plot my sine waves in one graph, one right after another with 100ms in between and not on top of each other?
hello Kristin I fixed your code I prefered to use a constant fixed time increment for all frequencies instead of keeping the s...
3 días ago | 0
| accepted
Running a loop to generate multiple graphs using the same equation with different parameters
hello yes your code could be made more compact and flexible see my suggestion below clc clearvars t = linspace(0,5); ...
3 días ago | 2
| accepted
Identification of fundamental frequency and not harmonics in a FFT - using peak locations
hello try this of course I cannot plot the spectrum as this is not provided here I just let you see how to do the separati...
3 días ago | 0
| accepted
How to make an if-statement that finds whether a 1x5 column has 4 of the rows the value 0?
hello my suggestion below : matrix = [0 0 0 241 0]; ind1 = find(abs(matrix) == 0); % method 1 can be unpredictabe if val...
3 días ago | 0
Arrange average in same vector values
hello try this %% dummy data B = ([1 1 1 1 2 2 2 4 4 4 4 1 1 1 1 2]/8)'; % 2nd column data A = 100*rand(size(B))'; ...
4 días ago | 0
| accepted
Intergrating the data using a scalar value
hello see the doc for cumtrapz I believe you simply put the arguments in the wrong order it must be Int1 = cumtrapz(V,A1)...
4 días ago | 0
| accepted
easy and efficient way to create cell array or table from csvs or existing variables
hello this is my 2 cents suggestion clc clearvars %% first section : CSV file management fileDir = pwd; % Sorting ...
4 días ago | 0
| accepted
For looping figures creation
hello see example code below for listing and sorting filenames in natural order (what matlab does not do well by default) in ...
4 días ago | 1
| accepted
Reading a text file and then loop load audio files
hello again so this script will read the txt file where you have a list of wav file names then the loop will open the associ...
4 días ago | 0
| accepted
creating sine wave with variable frequency depending on variable
hello this is my suggestion - see attachement (R2020b) code for initialization : Fs = 1000; dt = 1/Fs; % angular table...
4 días ago | 0
| accepted
IIR Filter for loop Code
hello if you want to simply plot the bode diagram : Fs = 1000; % assumed for now ...sampling frequency b0 = 0.05 b1 = 0.03...
4 días ago | 0
How to convert accelerometer data to find displacement graph
hello see my suggestion below clc clearvars data = csvread('data.csv',1); % time & Acceleration data t = data(:,1)...
7 días ago | 0
| accepted
how to read data from excel file
hello your csv file has one first row wit this header (name of 6 variables : lib,pc,ir_can,ir_us,un_can,un_us) data = csvrea...
8 días ago | 1
Average of data multiples excel sheets
hello so this is my suggestion as we have here 10 sheets , my demo works for either groupped 2 or 5 sheets this is driven ...
8 días ago | 0
Could anyone help me with my Butterworth filter?
hello your filter specs and the realized filter are matching now it seems to me you're looking for a "brick wall" filter c...
9 días ago | 0
time delay between sinus signal
hello my suggestion below the time values of the crossing points are linearly interpolated between samples for maximal time ...
9 días ago | 1
| accepted
