Sifan Liu

About author

Sifan Liu has extensive experience delivering data and analytics products for public and private clients. Previously she worked as a senior research analyst with the Metropolitan Policy Program at Brookings. Her research expertise includes regional policy on innovation, entrepreneurship ecosystem, and economic development. Sifan holds a Master of Public Policy degree with Georgetown University.

Author's posts

Data dashboard showcase - Metro indicators and models

This dashboard is a showcase of the capabilities of R Shiny app, including displaying chart, data tables, maps, statistical models based on user inputs.

Data dashboard showcase - SODA Map Shanghai

This dashboard is part of the submission to the Shanghai Open Data App competition, it provides easy access to Shanghai Open Data along with curated findings for district-level policy makers.

How to Work with Strings in R

The following slides focus on the basics in working with strings in R - this will be great for someone who is new to R, but probably has some data analysis experience in Stata, Excel, or if you are already a R user, but mostly self-taught, and would like to have a refresher on what you could do with strings in R.

Visualizing the startup ecosystem network

Fetching data using CrunchBase API This analysis deploys crowdsourced data from Crunchbase, a continuously updated platform of technology-based startups.

Analyzing business ownership using Census data

How many businesses in the United States are owned by women or minorities? Does the ownership vary by industry and region?

Introducing the metro.data R package

metro.data metro.data is an R package for working with US Census geographic data. The built-in datasets include latest geographic reference files between census places, counties, metropolitan areas, and states, with population data from 2018 ACS 1-year estimates and employment data from CBP 2018 estimates.