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Teddy Fisher


Last seen: 4 years ago |  Active since 2019

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Searching a matrix and eliminating values below a certain value
Hi, I have a matrix, A. Each column is a set of consecutive numbers of different lengths, padded with nan because I extracted f...

4 years ago | 1 answer | 0

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answer

Question


Find runs of repeated ones of any length and put into a cell array to compare indices
Hello, I have two logical arrays, A & B, of size 370x23. They are the ouputs from two different functions performed on the same...

4 years ago | 1 answer | 0

1

answer

Question


How to combine 2 matrices conditionally and use short circuiting
I have 2 matrices of the same size, A & B, containing only 1s and 0s. I want to combine these matrices into a new matrix, C, so...

5 years ago | 0 answers | 0

0

answers

Question


How to select cells that meet a threshold based on a starting point
Hi, I have a matrix (DFF) that is 370x23, in this instance, that has my signal values from a video. The 370 is the number of f...

5 years ago | 0 answers | 0

0

answers

Question


error in returning widths over iterated findpeaks
Hi, I am trying to use findpeaks over a matrix, x, column by column. I am using a for loop as below: for k=1:size(x,2) [P{k}...

5 years ago | 1 answer | 0

1

answer

Question


Group cells in a matrix per column based on an indexed starting point
I have two logical array matrices, A & B. I have the indexes of the 1s from A. I want to use these indexes as a starting point f...

5 years ago | 1 answer | 0

1

answer

Question


How to find and replace stand alone values in a logical array
Hello, I have a logical aray, a 370x29 matrix. I am trying to find all 1s and 0s that are non-consecuitve and replace them with...

5 years ago | 1 answer | 0

1

answer

Question


Can the diff function go the opposite direction?
Hello, As I understand diff it goes either left to right along rows or up to down a column. Is there a way to make diff do the ...

5 years ago | 1 answer | 0

1

answer

Question


Using a column vector of indices to replace values in a matrix
Hello, I have a column vector, C, (55x1 double) which are the indices of my values of interest in Matrix, M which is 370x29 dou...

5 years ago | 2 answers | 0

2

answers