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Komal


Last seen: 2 months ago Active since 2022

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Dot and Brace indexing is not supported for variables of this type in the Lifting wavelet transform artifact removal method .How can I solve this problem ?
% Plot the approximation coefficients at each level for i = 1:level subplot(level+1, 1, i+1); plot(ca{i}); title...

3 months ago | 1 answer | 0

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How can I solve this problem in the CSP feature extraction algorithm for EEG signal?
Dataset description: Code: % Calculate the covariance matrices for each class cov_matrices = cell(1, 2); disp(unique(label...

3 months ago | 0 answers | 0

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Question


How can I plot multiple signals separately as like mentioned figure for avoiding this three signals overlapping?
Program code: %plot all signals in a single plot. figure; subplot(211) plot(d2,'k','LineWidth',.5); %Input Signal title...

3 months ago | 1 answer | 0

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Why dot indexing is not supported for variables of this type using EMD method in MATLAB R2019a version ? What can I do?
code: [IMF, residual, info] = emd(eeg_signal); imf_count = max(info.NumIMF); Dot indexing is not supported for variables of t...

3 months ago | 1 answer | 0

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How to fix this problem in the EMD method for artifact removing from contaminated EEG signal?
[IMF, residual, info] = emd(eeg_signal); imf_count = max(info.NumIMF); ///In here, problem have arisen. figure; for i=1:imf_c...

3 months ago | 0 answers | 0

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Question


Why wICA method use multi channel EEG signal over single channel EEG signal ? Which channel is subtracted from {data1 = [d1;d2;d3;d4;d5;d6];} and why??
eeg1 = data{1,1}.X; eeg2 = eeg1.'; d1 = eeg2(1,1:10000); d2 = eeg2(2,1:10000); d3 = eeg2(3,1:10000); d4 = eeg2(4,1:10000)...

6 months ago | 0 answers | 0

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Question


Raw EEG signal is decomposed by fastICA method but there have same independent components and I can't understand why they are same. Have there any suggestions for solve this?
DataSet FastICA Code: %% clc; clear close all; load B02T.mat; fs=250; % t = 0.004:1/fs:1; eeg1 = data{1,1}.X; ...

6 months ago | 0 answers | 0

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For removing artifact from raw EEG signal ,I have need to pca.m and rica.m file . How can I get this pca and rica function of MATLAB files?
%% PCA q=21; % PERFORM PCA [coeff,Data_PCA,latent,tsquared,explained,mu] = pca(Data, 'NumComponents', q); %this pca function ...

6 months ago | 1 answer | 0

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After applying EMD method for removing artifacts with the help of global thresholding the SNR and MSE value are calculated. Is it correct or not? Please check this and guide .
Here is my dataset. DataSet %% clc clear close all; load B02T.mat; fs=250; % t = 0.004:1/fs:1; eeg1 = data{1,1}....

8 months ago | 0 answers | 0

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I apply SWT method to remove artifact from EEG signal. The level of decomposition,5 and the length of the signal,2000.How to apply 2^Level in this code? What can I do?
DataSet %% clc; clear close all; load B02T.mat; fs=250; % t = 0.004:1/fs:1; eeg1 = data{1,1}.X; channel_1= ee...

8 months ago | 1 answer | 0

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Why noise_signal does not plot correctly? There are the problems in the code to calculate SNR and MSE value .What can I do?
Here is my DATASET %% clc; clear close all; load B02T.mat; fs=250; % t = 0.004:1/fs:1; eeg1 = data{1,1}.X; chan...

8 months ago | 1 answer | 0

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Why SNR value is negative in my code ? Is the MSE value is correct?
DATASET %% clc; clear close all; load B02T.mat; fs=250; % t = 0.004:1/fs:1; eeg1 = data{1,1}.X; channel_1= eeg1...

8 months ago | 1 answer | 0

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Question


Why emd function doesn't work in my code?
clc; clear; load s1.mat; load HEOG.mat; s = s1.train; y0 = datasample(s,1); y = y0(1:5000); g = heog_1; g = g(1:5000); ...

1 year ago | 0 answers | 0

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