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Awarded to Susan on 18 Feb 2022
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Question
How to chop up/segment a periodic signal?
I have a normal EKG signal (a periodic signal), and I 'd like to automatically chop up the signal into individual cycles (contai...
27 jours ago | 1 answer | 0
1
answerQuestion
How to calculate the small changes in a signal?
Hi all, I have an ECG signal and would like to know what minor amplitude changes I can recognize. The goal is to see if I'm abl...
environ un mois ago | 2 answers | 0
2
answersQuestion
How to calculate the peak-to-peak amplitude of a waveform?
Hi All, Sorry if I’m asking about the obvious, but could somebody please tell me how to calculate the peak-to-peak voltage of t...
environ un mois ago | 2 answers | 0
2
answersQuestion
How to expand a waveform on x-axis?
Hi All, I want to expand a waveform on the x-axis. Specificlly, in the following fig, I would like to expand a waveform in such...
environ un mois ago | 1 answer | 0
1
answerQuestion
How to find a pattern in an array?
Hi All, I have an array (attached) and I'd like to find where a specific pattern happens in the array. I know that by knowing ...
environ 2 mois ago | 0 answers | 0
0
answersQuestion
How to read a .dat file containing an ECG signal?
Hi, I have an ECG signal contains data collected from 12 leads, saved in a .dat file (attached here). Could someone please hel...
2 mois ago | 1 answer | 0
1
answerQuestion
Error using trainNetwork (line 184)
Hi All, I am trying to classify sequence datasets using deep learning by applying net = trainNetwork(XTraining,YTraining,layer...
7 mois ago | 1 answer | 0
1
answerQuestion
How to plot the amplitude ratio and phase differences for two time series signals ?
Greetings, I'd like to plot the amplitude ratio and phase differences of two signals. I used the following code to calculate ...
8 mois ago | 1 answer | 0
1
answerQuestion
How to remove outliers and smooth the complex signals?
Hi there, I am working on a complex data set-- a 300-by-1000 matrix which each element is a complex number and each column of t...
environ un an ago | 2 answers | 0
2
answersQuestion
How to load .mat data from another folder?
Hey, I have several mat files located in a folder called "matFile". the script is located in the uperfolder of this matFile fol...
environ un an ago | 2 answers | 0
2
answersQuestion
Could somebody please help me with Object-Oriented Programming in MATLAB?
Hi All, I am working on a script that call a "classdef" function and I need to have access to a value in this "classdef". Could...
plus d'un an ago | 0 answers | 0
0
answersQuestion
Customizing the tick values and labels along x axis
Hi All, When I plot(1:20, f), the x-axis are shown from 1 to 20. However my real x values are x = Columns 1 through ...
plus d'un an ago | 1 answer | 0
1
answerQuestion
How to define both integer and decimal increment in one for loop?
Hi all, I would like to define one for loop that goes from 0 to 1 with an increment of 0.1 and then goes from 1 to 30 by an inc...
plus d'un an ago | 2 answers | 0
2
answersQuestion
Why do I get 'Out of Memory' error?
Hi All, I have a dataset which contains 316663 cells, each cell contains either a 600-by-1 or a 300-by-1 matrix. I got the err...
plus d'un an ago | 1 answer | 0
1
answerQuestion
How to create indices for the k-fold cross-validation?
Hi All, I'd like to create indices for the k-fold cross-validation using indices = crossvalind('Kfold',Labels,k); The "Label...
plus d'un an ago | 1 answer | 0
1
answerQuestion
How to combine n cell arrays into one giant one?
Hello, I have a 12-by-190 cell array dataset, each contains either a 1-by-504 cell array or a 1-by-336 cell array. Each of thes...
plus d'un an ago | 1 answer | 0
1
answerQuestion
kmeans clustering of matrices
Hi All, I have 12X190 cells. Each cell contains a complex matrix of size n*550 (assuming each row is an observation on 550 va...
plus d'un an ago | 1 answer | 0
1
answerQuestion
How to calculate the duty-cycle of a WiFi signal in WLAN toolbox?
Hi All, I just checked out the BLE coexistence model with WLAN signal interference (https://www.mathworks.com/help/comm/ug/ble-...
plus d'un an ago | 1 answer | 0
1
answerQuestion
How to extract contents of multiple tar files in a loop?
Hello Everyone, I have multiple .tar.gz files that I'd like to extract contentes of them. For one file I use path = 'C:\Users\...
plus d'un an ago | 1 answer | 0
1
answerQuestion
How to access data in a cell array?
Hi, I have an 40*8 cell array, called Q. Each cell contains an 64×64×128 double matrix. I would like to have a foor loop on ...
plus d'un an ago | 1 answer | 0
1
answerQuestion
How to combine several cell arrays into one cell array?
Hello every one, I have 4 cell arrays as given below H = 20*4*4 cell array G = 40*8*4 cell array Q = 20*4*8 cell array w...
plus d'un an ago | 0 answers | 0
0
answersQuestion
How to use the classification learner app?
Hi Guys, I am working on a classification problem and not quite sure how I can use the classification learner app. First of al...
environ 2 ans ago | 1 answer | 0
1
answerQuestion
How to assign label from one cell array to data inside another cell array?
Hello everyone, I have a 10*200 cell array C which each of these cells contains 1*1000 cell array. I have another 10*200 cell...
environ 2 ans ago | 1 answer | 0
1
answerQuestion
Apply a customized function to cell array
Hello everyone, I have a C = 10*200 cell array. Inside each cell I have an M*N matrix. There are some zero columns and rows in ...
environ 2 ans ago | 1 answer | 0
1
answerQuestion
How to get rid of The RPC server is unavailable Error?
Hi everyone, I have a main folder with 10 subfolders in it. Each subfolder has 200 subfolders within them. in each of these 200...
environ 2 ans ago | 2 answers | 0
2
answersQuestion
How to access .csv files in a .tar.gz file?
Greeting! I have a bunch of *.tar.gz files, say 100 (example1-example 100). In each of them I have more than 1000 .csv file tha...
environ 2 ans ago | 1 answer | 0
1
answerQuestion
Compare two excel files and generate a new one that contains all columns
Hello everyone, I have two excel files. They are filled out with numbers and text. The first file has 6 columns, say (a, b, c,...
plus de 2 ans ago | 1 answer | 0
1
answerQuestion
Access data in a nested structure array and generate an excel file
Hello everyone, I have a bunch of .json files in a folder called "JSON files". Each file is an article. I would like to put the...
plus de 2 ans ago | 1 answer | 0
1
answerQuestion
Which filter should I use to remove the high frequency component from this signal?
Hi, I have a time-varing signal and I would like to figure out what is the best filter (low-pass, band-pass, high-pass) to appl...
plus de 2 ans ago | 1 answer | 0
1
answerQuestion
Plot differing matrices vs time
Hello everyone, I have a data set and I would like to plot it versus time. For each observation (at a specific time instance) I...
plus de 2 ans ago | 1 answer | 0
1
answer
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