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Panayiotis Christodoulou


Active since 2012

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Predict visits of new shops
Hi there, I have the following datasets: a) users profile info - train dataset b) users profile info - test dataset c) u...

8 years ago | 0 answers | 0

0

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find N number of min values
Hi there, I have a dataset: 10 11 5 6 23 4 1 3 98 56 I want to find the 3 smallest values that exist in the da...

8 years ago | 3 answers | 0

3

answers

Question


Measure Sum of column if statements are true
Hi there, I have a matrix array of 4 columns first: ID Second: ShopID Third: Visits Forth: 1 or -1 How can I...

8 years ago | 2 answers | 0

2

answers

Question


Count numbers for occurrences
Hi there, I have a table UserID, Market, Geo, Price, Product I want to count for each userID how many times he bought...

8 years ago | 3 answers | 0

3

answers

Question


Count numbers of identical rows
Hi there, I am a new member here. I have a sample dataset: 3 5 3 5 5 6 5 6 5 6 5 7 6 8 I want t...

8 years ago | 1 answer | 1

1

answer

Question


HAMMING DISTANCE IN ONE ARRAY
Hello, i have a 1000x19 double array. The first column is the product id and from the second column until the 19 column th...

12 years ago | 1 answer | 0

1

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