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2020-chesapeake-bay-hackathon-case-study

This is the repo for Hack the Bay Hathathon

365daysofalgorithms

Leetcode Algorithms with Python and JavaScript

algorithm-2022

bash

chicago_crime_predictive_analytics

This is the latest predictive analytics I have done for the summer in 2019. The data set is in total 1.6 GB. I did variable selection and applied random forest with or without cross validation, conditonal inference trees, KNN-CV, and SVM with linear kernel.

cs50

Here I present my codes in C for the problem sets in cs50 with Harvard University

data

Data and code behind the articles and graphics at FiveThirtyEight

data-baby-names

Distribution of US baby names, 1880-2008

data-ingestion

Data Ingestion with Python

demo-dbs

django

The Web framework for perfectionists with deadlines.

django_project_boilerplate

A boilerplate Django project for quickly getting started

docker-training

ecom_steps

hack-the-bay

hackerrank

Record my coding progress with HackerRank

interviews

Everything you need to know to get the job.

jchenrcl

jen-li-chen.github.io

kaggle-titanic-r-code

I as a team leader reached to top 10% with conditional inference trees model

leetcode

Record my Leetcode practice with Python3, SQL and CPP

leetcode-1

python-web-scraping

r_code_data_cleaning

This is the code in R I used to clean the historical data in biochemical industry, around 80,000 observations, presented ANSI/ASQ Z1.9 variable sampling formula

shoppingcart

sql

Most of them are SQL Oracle, while keeping practicing PostgreSQL and MySQL

sql-1

sql-query

mainly Leetcode SQL questions

stackoverflow

Findings from Stackoverflow 2017

thinkstats2

Text and supporting code for Think Stats, 2nd Edition