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Stephen Thompson


University of Texas Health Science Center at Houston

Last seen: 2 years ago |  Active since 2017

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Morse wavelet parameters limitation
. The ratio of the time-bandwidth product to gamma cannot exceed 40. Why is this? Lilly (who defined these wavelets) does not...

4 years ago | 0 answers | 0

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answers

Question


Indexing for partial matrix
I have a 140 x 2000 matrix. It contains a blob of area (I know the linear indices) that has known peaks. I want to find the maxi...

4 years ago | 1 answer | 0

1

answer

Question


How to vectorize this code
The goal here is to find peaks in the xy plane. This is a general example but my particular utilization uses a much bigger datas...

4 years ago | 2 answers | 0

2

answers

Question


Removing leading values in a matrix
I am using the findchangept function ('std') on the below time series. The first 23 values are 0, which gets marked as the chang...

7 years ago | 1 answer | 0

1

answer

Question


Using cellfun for multidimensional cell
I have a cell of this type: 200×3 cell array [1×60000 double] [ -0.9365] [154.9924] [1×60000 double] [ ...

7 years ago | 1 answer | 0

1

answer

Question


Help with cusum and cellfun
I am running the cusum function via cellfun as below - however I can only get one value from the output. When run separately, cu...

7 years ago | 2 answers | 0

2

answers

Question


Error that makes no sense at all
Suddenly the histogram function doesn't generate plots. I tested it with this: >> x = randn(10000,1); >> h = histogr...

8 years ago | 1 answer | 0

1

answer

Question


Split cell based upon logical value
I have an n x 5 cell array, the 5th column is a logical (0 or 1). I want to split this into two separate cells, one for false...

8 years ago | 1 answer | 0

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answer