Kjell Lemmen

Active since 2018

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Question

find how many times a signal becomes above a certain signal
Dear all, I have to count the times when a signal goed under a certain value and gets above a different value. For example: if...

7 years ago | 2 answers | 0

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answers

Question

How do I select a y value by a certain x datetime
Dear all, I need to find the y value by a certain x datetime. If h is my datetime and I try: y(h); It does not wo...

7 years ago | 2 answers | 0

2

answers

Question

select y data with duration x data
Dear all, I have to select the y values in a duration of 5, with the same mechanism as a moving average. These are my arrays: ...

7 years ago | 2 answers | 0

2

answers

Question

cut x and y array on datetime
Dear all, I have an x and y vector. x is my Datetime vector and y is my biosignal. x and y have the same length. How do i...

7 years ago | 1 answer | 0

1

answer

Question

combine 2 vectors to one result vector
Dear all, These are my arrays: y = [94 96 96 94 89 92 90 89 88 92 93 91 91 91 90 88 90 87 90 91]; y1 = [95 93 94 ...

7 years ago | 1 answer | 0

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Question

select y values for x values
Dear all, Lets say x is a datetime and y is my biosignal which contains NaN's. In my filter I have to select for 30 seconds...

7 years ago | 0 answers | 0

0

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Question

improve fft signal quality
Dear all, Has someone tips how i can improve my fft signal quality? I have a SpO2 signal with round values. I have tried detr...

7 years ago | 0 answers | 0

0

answers

Question

select part vector put it back in other vector
Dear all, I want to select the 16th data point from a vector with the 15 points before and after that 16th point. I want to...

7 years ago | 2 answers | 0

2

answers

Question

custum filter for biosignal
Dear all, I have a custum made filter based on removing datapoints who are bigger than 3 times the std from the mean. I have...

7 years ago | 1 answer | 0

1

answer