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Fischer Zheng


Scotiabank Group

Last seen: 6 mois ago Active since 2015

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Question


convert categorical to numeric
I have a categorical array and I want to convert it back to the numerical matrix. What is the syntax? Thanks,

presque 6 ans ago | 6 answers | 1

6

answers

Answered
Searching and summing array
This is what did on my first try and it takes 30mins to run through the code. However, when I did two for loops it is much fast...

environ 6 ans ago | 0

| accepted

Question


Searching and summing array
Hi All, I have three arrays. One small one called A and two huge ones called M1 and M2. M1 and M2 are of the same size. A ...

environ 6 ans ago | 2 answers | 0

2

answers

Question


Maxtrix copy and manipulation
I have one matrix and one vector. I would like to shift the elements of row forward depending on the vector index. M = [0 ...

environ 6 ans ago | 2 answers | 0

2

answers

Question


Lookup values in other matrix
I have two very large vectors of the same size: Vector 1 contains a list of type Type ("Math","Chem","Bio") ["Math" ...

environ 6 ans ago | 1 answer | 0

1

answer