SQL vs. Python, Which Is Your Favorite?
Last week, I had a dinner break with my colleagues at Le District, New York. I asked one of them, "do you like coding?" His answer was,...
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Happy Analyzing With Yuchen
Data Analytics
- May 14, 2020
- 4 min
JSON - The Best Pal of Python
It's been a while since the last time I visited my favorite restaurants in New York. Hmm...I really miss them. I'm always wondering how...
510
- May 4, 2020
- 4 min
Python Data Structures and Sequences Cheatsheet (Updated on 6/1/2020)
Data structures are very important to data analysis with python. They are simple but powerful and flexible. I prefer to store them in the...
770
- Apr 23, 2020
- 4 min
Stay Home and Detect Fake News With Python
Stay home is not a bad thing, watching the news every day reminds me of a project during my graduate study at NYU, which was an...
340
Customer Analytics
- Mar 24, 2020
- 3 min
Cohort Analysis Series 2 – Keep an Eye on Your Retained Customers
Today is another normal day for me, but for the people who work on front lines, it's not. I wrote each word in this blog with my...
220
- Feb 29, 2020
- 3 min
Cohort Analysis Series 1 - Did You Retain the Repeat Customers?
Leap day post! I'll celebrate my blog's birthday every 4 years! This is the first blog of my Cohort Analysis series, I can't wait to...
320
- Jan 4, 2020
- 3 min
4 Steps You Must Know for Creating Pareto Chart in Tableau
I believe most people have had this experience: being asked to join in the loyalty program of brands or department stores. Why are they...
300
- Nov 8, 2018
- 2 min
Why I Love Tableau Software
I've been working as a business analyst for almost two years and created hundreds of dashboard with Tableau, I have to say this software...
300
- Nov 8, 2018
- 2 min
Table Join Tricks with Tableau
Have you been asked to get data sits in different tables? You need to find a common field to create a relationship between these tables....
330
- Nov 8, 2018
- 2 min
Splitting Strings is Easy With Tableau
Recently, I am working on a new project which allows me to use 'Split' function a lot in Tableau. As an analyst, you will find the data...
310
Statistical Analysis
- Sep 7, 2020
- 3 min
Least Squares Regression with NYC Skyscrapers
How's your labor day weekend so far? I had a great time with my family at Staten Island (my fav place in NY). An interesting idea came...
910
- Feb 24, 2020
- 6 min
Everything You Need to Know about A/B Tests
I always remember my professor at NYU Stern says: thinking of a way to make your data meaningful. Understanding the business scenario and...
551
- Feb 4, 2020
- 4 min
Life is Harder than Math! Kick off Your First Hypothesis Testing
Welcome to the first Monday of February 2020! I hope you enjoyed your Super Bowl night with Chiefs and 49ers. February is busy, we have...
510
User Experience
- May 25, 2021
- 3 min
Designing for Care
The global pandemic changes people’s lives. Great restaurants permanently closed, department stores filed for bankruptcy, millions of...
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