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| esri_to_sgdf | Convert a base64-encoded gzipped Esri ASCII grid to an object of class SpatialGridDataFrame |
| get_stops | Extract walking times to nearby public transportation stops |
| isochrone | Issue a walkalytics isochrone query |
| isochrone_esri | Issue a walkalytics isochrone query |
| isochrone_png | Issue a walkalytics isochrone query |
| isochrone_pois | Issue a walkalytics isochrone query |
| pixel_walktimes | Extract pixel-accurate walking times from walkalytics raw data isochrones |
| pois_walktimes | Extract walking times to points-of-interest |
| pubtrans_ch_nearby | Issue a walkalytics pubtrans query |
| save_png | Save a base64-encoded PNG to file |