To cite the covidcast package in publications use:
Arnold T, Bien J, Brooks L, Colquhoun S, Farrow D, Grabman J, Maynard-Zhang P, Reinhart A, Tibshirani R (2025).covidcast: Client for Delphi's COVIDcast Epidata API.R package version 0.5.3,https://cmu-delphi.github.io/covidcast/covidcastR/.
To cite COVIDcast data in publications use:
Reinhart A, Brooks L, Jahja M, Rumack A, Tang J, Agrawal S, Saeed WA, Arnold T, Basu A, Bien J, Cabrera ÁA, Chin A, Chua EJ, Clark B, Colquhoun S, DeFries N, Farrow DC, Forlizzi J, Grabman J, Gratzl S, Green A, Haff G, Han R, Harwood K, Hu AJ, Hyde R, Hyun S, Joshi A, Kim J, Kuznetsov A, La Motte-Kerr W, Lee YJ, Lee K, Lipton ZC, Liu MX, Mackey L, Mazaitis K, McDonald DJ, McGuinness P, Narasimhan B, O’Brien MP, Oliveira NL, Patil P, Perer A, Politsch CA, Rajanala S, Rucker D, Scott C, Shah NH, Shankar V, Sharpnack J, Shemetov D, Simon N, Smith BY, Srivastava V, Tan S, Tibshirani R, Tuzhilina E, Van Nortwick AK, Ventura V, Wasserman L, Weaver B, Weiss JC, Whitman S, Williams K, Rosenfeld R, Tibshirani RJ (2021).“An open repository of real-time COVID-19 indicators.”Proceedings of the National Academy of Sciences,118(51).doi:10.1073/pnas.2111452118.
For more information about citing the datasets provided by the API, including their licensing, see:https://cmu-delphi.github.io/delphi-epidata/api/covidcast_licensing.html
Corresponding BibTeX entries:
@Manual{covidcast, title = {{covidcast}: Client for {D}elphi's {COVID}cast {E}pidata {API}}, author = {Taylor Arnold and Jacob Bien and Logan Brooks and Sarah Colquhoun and David Farrow and Jed Grabman and Pedrito Maynard-Zhang and Alex Reinhart and Ryan Tibshirani}, year = {2025}, note = {R package version 0.5.3}, url = {https://cmu-delphi.github.io/covidcast/covidcastR/}, } @Article{covidcastPNAS, title = {An open repository of real-time {COVID}-19 indicators}, author = {Alex Reinhart and Logan Brooks and Maria Jahja and Aaron Rumack and Jingjing Tang and Sumit Agrawal and Wael Al Saeed and Taylor Arnold and Amartya Basu and Jacob Bien and Ángel A. Cabrera and Andrew Chin and Eu Jing Chua and Brian Clark and Sarah Colquhoun and Nat DeFries and David C. Farrow and Jodi Forlizzi and Jed Grabman and Samuel Gratzl and Alden Green and George Haff and Robin Han and Kate Harwood and Addison J. Hu and Raphael Hyde and Sangwon Hyun and Ananya Joshi and Jimi Kim and Andrew Kuznetsov and Wichada {La Motte-Kerr} and Yeon Jin Lee and Kenneth Lee and Zachary C. Lipton and Michael X. Liu and Lester Mackey and Kathryn Mazaitis and Daniel J. McDonald and Phillip McGuinness and Balasubramanian Narasimhan and Michael P. O’Brien and Natalia L. Oliveira and Pratik Patil and Adam Perer and Collin A. Politsch and Samyak Rajanala and Dawn Rucker and Chris Scott and Nigam H. Shah and Vishnu Shankar and James Sharpnack and Dmitry Shemetov and Noah Simon and Benjamin Y. Smith and Vishakha Srivastava and Shuyi Tan and Robert Tibshirani and Elena Tuzhilina and Ana Karina {Van Nortwick} and Valérie Ventura and Larry Wasserman and Benjamin Weaver and Jeremy C. Weiss and Spencer Whitman and Kristin Williams and Roni Rosenfeld and Ryan J. Tibshirani}, year = {2021}, journal = {Proceedings of the National Academy of Sciences}, volume = {118}, number = {51}, doi = {10.1073/pnas.2111452118}, }