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Rida Alfonso


Last seen: 2 years ago |  Active since 2020

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I am having a little difficulty in understanding the implementation of kNN
% In the attached data file, I am predicting two classes (purchased or not purchased) using KNN based on two predictors that ar...

2 years ago | 0 answers | 0

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Question


Extracting data points from signals
I have a matrix of size 147456 x 3, This signal represents a data of 72 seconds where the sampling frequency was 2048. The signa...

3 years ago | 1 answer | 0

1

answer

Question


How to compare values within a matrix?
accuracy = [58,60,52,57,62] I have the accuracies and now i want to check if they are significantly different from each other. ...

3 years ago | 1 answer | 0

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answer

Question


How to inspect gain of a biomedical signal?
We have recorded an emg signal using an amplifier and the gain of amplifier was set to 10 thousand , and we know that the amplit...

3 years ago | 0 answers | 0

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Question


How to apply bandpass filter to a single data type?
We have recorded signals but when i load the signal into matlab, the data type is single. I want to apply bandpass filter and no...

3 years ago | 1 answer | 0

1

answer

Question


K FOLDS AND LDA
I have performed signal pre-processing,segmentation ,feature extraction, feature reduction using PCA and feature labelling.Now a...

3 years ago | 0 answers | 0

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answers

Question


Framing or overlapping segmentation of EMG Signal
I have an EMG SIGNAL AND I WANT TO PERFORM OVERLAPPING SEGMENTATION ON THIS SIGNAL USING A 200-MILLISECOND DATA WINDOW WITH A 50...

4 years ago | 0 answers | 1

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Answered
segmentation of a signal
clc clear fs=2048; windowSize = fs*0.3; % Number of samples required for 200ms window stepSize = fs*0.05; % Numbe...

4 years ago | 0

Question


segmentation of a signal
i have a nx3 matrix of a signal and i want to make small segments of 0.3 ms of this signal. using the following code i can make ...

4 years ago | 3 answers | 0

3

answers

Question


How to perform segmentation on EMG signals?
Hi! I am attaching an EMG signal of nx3 size , i want to perform overlapping segmentation on this signal using a 200-millisecon...

4 years ago | 0 answers | 0

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answers

Question


How to alternatively cut a signal into segments of different sizes
I have an EMG signal of duration 680 seconds, i want to make segments of this signal starting from the 1st 6 seconds and then th...

4 years ago | 1 answer | 0

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answer