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Provide your first answer ever to someone else's question
Awarded to Joana on 04 Oct 2021
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Awarded to Joana on 04 Oct 2021
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Feeds
Error in running loop for importing .cnt data file for multiple files
Hey Luke Did you end up solving this problem.? Currently i am facing the exact same error actually.
presque 3 ans il y a | 0
Question
How to implement shrinkage LDA?
Hi I have a classification task where i want to use shrinkage LDA, i have worked with simple LDA but i don't know how i can d...
environ 3 ans il y a | 1 réponse | 0
1
réponseQuestion
How to downsample a 3-D matrix data?
Hi I have a 3-D matrix (A) of order a x b x c. And the data is recorded at 1056Hz sampling frequency. The data is already fil...
environ 3 ans il y a | 1 réponse | 0
1
réponseQuestion
How to zero mean a 3-D array
Hi I have a 3-D matrix of size a x b x c. Where a is actually the sample value i want to zero mean. Is it possible to zero ...
environ 3 ans il y a | 2 réponses | 0
2
réponsesQuestion
Concatenate 3-D matrix in a for loop
Hi I have 25 matrices of 3-D 150x66x1000. I need to concatenate them in a for loop to get an output of 3750x66x1000. How can...
plus de 3 ans il y a | 3 réponses | 0
3
réponsesQuestion
Default learning rate and initial weights for trainscg neural network
Hi I am trying to train a neural network with trainscg function. and i want to know the default parameters for following: 1:...
plus de 3 ans il y a | 1 réponse | 0
1
réponseQuestion
How to select 10% of a matrix with an increment of 10% until 80%
Hi I have a matrix x with size 200x353. I need to sleect 10% of the matrix with an incerement of 10% until 80%, so something li...
plus de 3 ans il y a | 1 réponse | 0
1
réponseQuestion
Leave one out of an array in a for loop
Dear all I have a program where i need to save one variable separately and concatenate i-1 elements in another variable (Then...
plus de 3 ans il y a | 1 réponse | 0
1
réponseQuestion
Select sample from an array
Hello I have an array of 200x259 samples. I need to make a new array of all the rows but for column i have to reject 3 samples ...
plus de 3 ans il y a | 1 réponse | 0
1
réponseQuestion
How to calculate peak voltages of a waveform.?
I have an EEG potential waveform, which has multiple peaks (Positive and negative). I'm using the findpeaks function to find the...
plus de 4 ans il y a | 1 réponse | 0
1
réponseQuestion
How to take Mean of cell array ?
Hi I have a struct variable A with 1x15 cell, where each cell array is of variable size in it's 1st dimension and other two dim...
plus de 4 ans il y a | 1 réponse | 0
1
réponseQuestion
How to save data at each iteration in a cell array?
Hi, I have saved data sests where i have two variables of 3-D, A and B. I want to load it for each subject and save it in a cel...
plus de 4 ans il y a | 1 réponse | 0
1
réponseQuestion
Error using table.init (line 401) The VariableNames property must contain one name for each variable in the table.
Hi I am trying to save the variables in the form of .xls table but it gives the following error: Error using table.init (line ...
plus de 4 ans il y a | 1 réponse | 0
1
réponseQuestion
How can I test a trained Neural Network Model on new test data?
Hi, I am trying to test a trined NN model in MATLAB but it's giving the wrong output. I have trained the model on input of or...
plus de 4 ans il y a | 1 réponse | 0
0
réponseQuestion
How to process files of a particular order in MATLAB?
Hi I have saved data for multiple subject's, multiple sessions with the following name format: Sub1_S1_Epochs,Sub1_S2_Epochs,...
plus de 4 ans il y a | 1 réponse | 0
1
réponseQuestion
How to test neural network trained model?
Hi I am using NN for classification purpose, i know how to do this for one subject, by didviding the data in training:testing...
plus de 4 ans il y a | 1 réponse | 0
1
réponseQuestion
Dot indexing is not supported for variable of this type.
Hi all, I want to use EEGLAb function to remove the epochs with a value greater than +-150uV in the time interval of 0-0.8ms. I...
plus de 4 ans il y a | 2 réponses | 0
2
réponsesQuestion
Save variables in a folder
Hi, I have written a code to extract 'epochs' from 'data'. I need to save 'ErrPsEpochs' and 'NonErrPsEpochs' for each subject a...
plus de 4 ans il y a | 1 réponse | 0
1
réponseQuestion
Calculate mean of an array in time windows.
Hi i have EEG data recorded at 1200hz from 5 channels, for 10 repetitions, and i need to calculate mean of each 1s signal in 10...
plus de 4 ans il y a | 1 réponse | 0
1
réponseQuestion
Spectrogram of EEG Signal
Hello I have EEG signals which i need to classify, for that i need to change the EEG signals to the Images, i.e by taking spect...
plus de 4 ans il y a | 1 réponse | 0
0
réponseQuestion
Maximum number of input neurons to the neural network
Hi, I have EEG data to classify, for 2 classes. The data dimesnion is 30000x512. Where 512 is the number of samples (50:50 for ...
plus de 4 ans il y a | 1 réponse | 0
1
réponseQuestion
How to save a neural network to test on a new dataset?
Hi, I am using the following code to train and test NN for 2-class classification. I need to save the trained network to test o...
presque 5 ans il y a | 1 réponse | 0
1
réponseQuestion
How to prepare the Input for feedforward neural network?
Hi All, I have to use feedforward neural network for 2-class classification problem. I have EEG data (of 1s, recorded at the sa...
presque 5 ans il y a | 1 réponse | 0
1
réponseQuestion
Repeat 3-D array elements
Hi I have a 3-d array x of size 67x960x80. I need to repeat the elements of the array 3 times to make it an array of size 67x96...
presque 5 ans il y a | 1 réponse | 0
1
réponseQuestion
Index must be a positive integer less than or equal to the number of test sets.
Hi i'm trying to create 10-fold cross validation for my CNN. To create the 10 batches I'm using a for loop, but it's giving thi...
presque 5 ans il y a | 1 réponse | 0
1
réponseQuestion
'Index must be a positive integer less than or equal to the number of test sets.'
Hi i'm trying to create 10-fold cross validation for my CNN. To creat the 10 batches i'm using for loop, but it's giving this e...
presque 5 ans il y a | 1 réponse | 0
0
réponseQuestion
Divide the matrix randomly, based on columns
Hi I have a matrix x of size 78000x204. I need to divide it into nonoverlapping but random 70:15:15 percent of the data, based ...
presque 5 ans il y a | 1 réponse | 0
1
réponseQuestion
Shuffle the rows a matrix
Hi I have a matrix x of size 512x3600, and another matrix y=512x1, I need to shuffle the entire rows of matrix x and alement of...
presque 5 ans il y a | 1 réponse | 0
1
réponseQuestion
String to Categorical array
Hi I have an array of x=[zeros(1,120) ones(1,240)]; I want to convert it into a categorical array of 'Z' of size 1x120 and 'O...
presque 5 ans il y a | 1 réponse | 0
1
réponseQuestion
COnvert 3d matrix to 2D
I have a matrix of x=1200x30x410, i need to change it to 2D as x=3600x410. How to do that.? it gives an error by using reshape ...
presque 5 ans il y a | 1 réponse | 0
1
réponse
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