WY Fok – Medium

WY Fok

Real proficient in SQL if you understand this query

And also proficient in solving Sudoku as well

5 min readFeb 11, 2023

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Real proficient in SQL if you understand this query

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WY Fok
in
Towards Data Science

Solve linear programming in Python with FICO Xpress

Why do we have LP? Because we want to achieve the best every time with our resources on hand

6 min readDec 5, 2021

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Solve linear programming in Python with FICO Xpress

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WY Fok
in
Towards Data Science

What song did I miss in the 2010s?

Use Spotify Web API and k-means clustering to find them out

7 min readJun 26, 2021

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2

What song did I miss in the 2010s?

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2

WY Fok
in
Towards Data Science

Lesser-known skills required for you to be a good data analyst

All are non-technical skills, not SQL, not Power BI, not R/Python.

5 min readJan 2, 2021

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Lesser-known skills required for you to be a good data analyst

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WY Fok
in
Towards Data Science

I made this introductory SQL learning article for you as a data analyst

SQL is still important and necessary for hunting data analyst position

9 min readAug 30, 2020

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I made this introductory SQL learning article for you as a data analyst

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WY Fok
in
Towards Data Science

Less known Pandas groupby applications in Python

But they are still useful to you

4 min readAug 23, 2020

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Less known Pandas groupby applications in Python

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WY Fok
in
Towards Data Science

You are telling people that you are a Python beginner if you ask this question.

The question is simple but the answer is not.

5 min readAug 2, 2020

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18

You are telling people that you are a Python beginner if you ask this question.

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18

WY Fok
in
Towards Data Science

Naive Bayes: A simple but handy discrete classifier

And it’s not naive after all!

4 min readJul 11, 2020

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Naive Bayes: A simple but handy discrete classifier

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WY Fok
in
Towards Data Science

Learn how to master groupby function in Python now

GroupBy in Pandas is way more sophisticated and powerful than groupby in SQL.

8 min readMay 1, 2020

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3

Learn how to master groupby function in Python now

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3

WY Fok
in
Towards Data Science

Bookmark this if you are new to Python (especially if you self-learn Python) (Part 2)

Learn these tips and tricks to smooth your coding now!

4 min readApr 15, 2020

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1

Bookmark this if you are new to Python (especially if you self-learn Python) (Part 2)

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1

WY Fok

WY Fok

Amazonian. Former data science intern in Amazon Germany. Bachelor in Statistics and Master in Operation Research. Love working with number. Python / SQL / SAS

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