├── .gitignore ├── 01_data_collection ├── 00-install-packages.R ├── 01-collect-tweets.r ├── 02-aggregate-user-data.py ├── 03-spam-location-activity-filter.r ├── 04-extract-retweets.py ├── 05-extract-random-sample-tweets.py └── 06-collect-followers.r ├── 02_estimation ├── 07-create-initial-matrix.r ├── 08-first-stage.r ├── 09-collect-additional-followers.r ├── 10-create-final-matrix.r └── 11-second-stage.r ├── 03_analysis ├── 12-validation.r ├── 13-heatmaps.r ├── 14-network-visualization.r ├── 15-polarization-estimation.r └── 16-asymmetric-polarization.r ├── README.md └── plots ├── figure1a.pdf ├── figure1b.pdf ├── figure1b_revised.pdf ├── figure1c.pdf ├── figure1c_revised.pdf ├── figure2a.pdf ├── figure2b.pdf ├── figure3a.jpg ├── figure3b.jpg ├── figure3c.pdf ├── figure3d.pdf └── figure4.pdf /.gitignore: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/pablobarbera/echo_chambers/HEAD/.gitignore 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