Jeff Chen's repositories
jeffchen.org
New personal page
stia-210
Data Science @ Georgetown School of Foreign Service
census-geocoder
R wrapper for census geocoding API
data-workshops
Data science workshop series with economic analysts
tutorial_viirs_part1
Tutorial for using nighttime imagery from Suomi NPP's VIIRS instrument
weather-series
R code to construct weather time series
textbook
The text
optimus-prime
Viz Project
data-science
Lectures for Introduction to Data Science for Public Policy (PPOL 670-01)
example-dashboard
Class tutorial for RMD Flexdashboard
getThisAmericanLife
Repository of This American Life transcripts for text analysis. Data from https://www.thisamericanlife.org/
digIt
A simple wrapper to dig into new example datasets for data science and statistics.
propensity_score
Basic greedy matching in R
tutorial_noaa_hail
Hail storms can cause harm to people and property. This R tutorial with leaflet.js + Google Charts integration focuses on getting started with severe weather data to assess and map hail risk around the US.
bea.R
bea.R: A library for use with BEA’s API
doc-data
Code snippets for handling NOAA data
geotransition
Vignette of some code for side project
bookdown-demo
A minimal book example using bookdown
presoLayer
You've spent a lot of time working through data analysis and developing machine learning data products. It's technically sound and accurate. But for some reason the project is not getting much traction. Most people won't understand machine learning and predictive outputs in their full glory -- model outputs are not enough. This project seeks provide a lightweight, easy to deploy presentation layer for data projects.
image-processing
Basic scripts to prep images for specific computer vision use cases
n-gram-similarity
Calculate n-gram similarity between two lists
rudy.js
A ML library for JavaScript (in development)
qcew_unpack
R functions to unpack QCEW flag files
shoe-data
quick dive into shoe data from StockX