HelpAStudent
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Accept 20 answers given by other contributors
Awarded to HelpAStudent on 10 Jun 2023
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How to filter an EEG signal from eye blinking, electrodes movement and calculate the evoked potential?
Hi this is my code: can you help me, because the filtering does not work load 'eeg4.mat' sig = eeg; fs = 256; t=linspace(0...
mehr als ein Jahr vor | 1 Antwort | 0
1
AntwortFrage
How to compute the HRV and peak extraction in ECG?
Can you help me to compute the HRV and detection of the peaks from this code: load sig_ecg.mat Fs = 300; L = numel(sig); ...
mehr als ein Jahr vor | 1 Antwort | 0
1
AntwortFrage
How to calculate Power Spectral Density using Welch, Periodogram, Yule-Walker, and Burg Methods in ecg?
Hello! I have a signal that has been filtered using a specific code. I'm looking for assistance in calculating the power spectra...
mehr als ein Jahr vor | 1 Antwort | 0
1
AntwortFrage
How to Remove the baseline wander from ECG?
Hello there! I've noticed a similar question posted in the community, so I kindly request that you refrain from providing a gene...
mehr als ein Jahr vor | 1 Antwort | 0
1
AntwortFrage
How to calculate the heart rate from an ECG signal?
Hi, I have for example this ecg signal from how I did the plot in time: load 'sig.mat' fs = 300; t=linspace(0,length(sig)/fs...
mehr als ein Jahr vor | 1 Antwort | 0
1
AntwortFrage
How to analyze and process signals: Loading, nature identification, artifact extraction, non-stationarity modeling, synthetic signal generation, and wavelet filtering?
How can I effectively analyze and process a signal using MATLAB, considering the following tasks: Loading a signal from the "si...
mehr als ein Jahr vor | 1 Antwort | 0
1
AntwortFrage
How to proper filter an EMG?
How can I plot the signal from the file "sigtest230504.mat" in MATLAB with a sampling frequency of 1000Hz and identify any artif...
mehr als ein Jahr vor | 0 Antworten | 0
0
AntwortenFrage
How can I distinguish from an unfiltered signal an eeg signal from an emg one?
Could you please provide guidance on how to plot the signal from the file "sigtest230504.mat" in MATLAB with a sampling frequenc...
mehr als ein Jahr vor | 1 Antwort | 0
1
AntwortFrage
How I make a better pre-processing for machine learning?
Hi! I have a data set with different features of data (size 1950x22). With this I have to develop an algorithm through machine l...
mehr als 2 Jahre vor | 1 Antwort | 0
1
AntwortFrage
How can I replace the value of an outlier rather than delete it?
Hi! I have used this method to find and eliminate the outliers from a gaussian feature of my data set: figure; plot(Fetal_tabl...
mehr als 2 Jahre vor | 1 Antwort | 0
1
AntwortFrage
How do I confront the outliers from two different methods?
Hi! I have used two different methods to remove outliers from a certain data set. Here they are below: %Grubb's test figure; ...
mehr als 2 Jahre vor | 0 Antworten | 0
0
AntwortenFrage
How I change the name of the variables in a table?
Hi! I have a table like that: Movement_Table = table(Fetal_table.fetal_movement, Fetal_table_tot.r_prolongued_decelerations, F...
mehr als 2 Jahre vor | 1 Antwort | 0
1
AntwortFrage
How I categorize a features?
Hi! I have a dataset like the histogram here: with some data around 0, some other around 1, 2, 3, 4 and 5. I would like to mak...
mehr als 2 Jahre vor | 2 Antworten | 0
2
AntwortenFrage
How do I confront the value of a matrix?
Hi, I have a matrix 21x6 I have for rows 16:20 confront the column: for example for the first rows to analyze: (ROW 16) (Co...
etwa 3 Jahre vor | 1 Antwort | 0
1
AntwortFrage
How do I find the instersection on my plot?
I have a plot with the errorbar. The data coming from a matrix 21x6 and the errorbar from another matrix. I need to find where (...
etwa 3 Jahre vor | 1 Antwort | 0
1
AntwortFrage
How do I draw a horizontal line at a fixed height on the y axis and print the coordinates of the points I intercept?
Hi, I have a matlab plot with 6 curves (or functions). My y-axis ranges from 0 to 255. My x-axis ranges from -20 to 20. How ...
etwa 3 Jahre vor | 1 Antwort | 0
1
AntwortFrage
How do I change the values of the axes?
Hi I have this plot: figure; errorbar(y,e,'-o') legend('Cist -9dB', 'Cist -6dB', 'Cist -3dB', 'Cist 3dB', 'Cist 6dB', 'Cist 9d...
etwa 3 Jahre vor | 1 Antwort | 0
1
AntwortFrage
How do I put the errorbar in the plot?
Hi, I have this program: My program analyzes 21 different images and crops (for each image) 6 ROIs. The ROIs are cropped from ...
etwa 3 Jahre vor | 1 Antwort | 0
1
AntwortFrage
How to change the plot on the matrix?
I have a matrix 6x21, when I plot figure; plot(matrix);hold on This makes a plot with 21 curves, just like this: But I wa...
etwa 3 Jahre vor | 1 Antwort | 0
1
AntwortFrage
How to plot a linear fit (or Ordinary Least Squares)?
Hi, I have to analyze some data and put them in a graphics. I have a matrix with the mean and another one (with the same size)...
etwa 3 Jahre vor | 0 Antworten | 0
0
AntwortenFrage
How I plot a matrix wich each rows is a different curves on the graph?
Hi, I have a 6x21 matrix. I want to plot it in one single graph in wich each rows is a different curves.
etwa 3 Jahre vor | 1 Antwort | 0
1
AntwortFrage
How can I make a better plot?
Hi, I have 5 sets of data and I want to write a script that reads my 5 matrices (1x21 double) and displays a single figure that ...
etwa 3 Jahre vor | 1 Antwort | 0
1
AntwortFrage
How can I plot 5 different variable all together?
Hi, my variable all have this form: A = [18, 20, 50, 60, ...] They all have the same size 1x21 double and they are five. Ho...
etwa 3 Jahre vor | 1 Antwort | 0
1
AntwortFrage
How can I save a variable from the workspace to use it for another script?
Hi, I want to save this variable for use that (and other one) in a brand new script
etwa 3 Jahre vor | 1 Antwort | 0
1
AntwortFrage
How can I repeat the same algorithm from different folders?
Hi, I have this algorithm which works perfectly. However, it only reads one folder at a time and graphs me only one curve at a t...
etwa 3 Jahre vor | 1 Antwort | 0
1
AntwortFrage
How do I plot together 5 different arrays?
Hi, I have 5 different arrays from different script of matlab. Who do I save this 5 arrays (the values in the array are foundame...
etwa 3 Jahre vor | 1 Antwort | 0
1
AntwortFrage
How do I create a matrix with specific values?
Hi, I have a matrix (6x21) whose values are those found experimentally. Let's call it: expbasket I want to calculate the erro...
etwa 3 Jahre vor | 1 Antwort | 0
1
AntwortFrage
How I sum to matrix wich one is the mean of the value and the other the standard deviation?
you certainly know that a value in order to be defined correctly it must be defined by its mean plus or minus its standard devia...
etwa 3 Jahre vor | 1 Antwort | 0
1
AntwortFrage
How to plot the value of a matrix?
Hi, I have a matrix 7x21 double, there is a way to plot the result with this imput: x axis: the columns y axis: the rows
etwa 3 Jahre vor | 1 Antwort | 0
1
AntwortFrage
How to compare the values of the same matrix?
I have a matrix 7x21 double. I need to compare each element of one column with each element of the remaining columns. By compare...
etwa 3 Jahre vor | 0 Antworten | 0
0
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