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France Poirier


Last seen: bijna 2 jaar ago |  Active since 2020

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How to find unique values in a matrix without looping over rows
Hi, I have an m by n matrix A that has repeat non-zero values in every row. The number of non-zero elements varies across row...

ongeveer 3 jaar ago | 2 answers | 0

2

answers

Question


How to find the first zero element in any column of a m by n matrix
Hi, I have a loop that updates certain rows of an MxN matrix depending on certain conditions. At each iteration of the loop I...

meer dan 3 jaar ago | 1 answer | 0

1

answer

Question


How to stack arrays into a matrix
Hi, This sounds like it should be really easy, but I can't figure out a way to do it without a loop. I want to avoid loops as...

meer dan 3 jaar ago | 1 answer | 0

1

answer

Question


accumarray works with made up data, but not real data
I am trying to write a code that does two things: Counts the number of unique values by category Couts the number of unique va...

meer dan 3 jaar ago | 1 answer | 0

1

answer

Question


Vectorizing a very slow code
Hi, I have a code that works, but is extremely slow that I would like to vectorize. I don't know anything about vecotrization. ...

meer dan 3 jaar ago | 1 answer | 0

1

answer