Advanced GIS mapping in R

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In this fast-paced webinar, we show how to create inset maps, faceted maps, animated maps, interactive mapping applications, cartograms, raster maps, and bridge over from R to QGIS thanks to the packages sf, tmap, raster, leaflet, shiny, ggplot2, ggmap, grid, mapview, cartogram, and qgisprocess.

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Комментарии
Автор

I could not get through the exercises here for several reasons.
1) Package conflicts - sf 1.0 will not operate properly. Installing older versions does not fix the problem. I had all kinds of issues with naturalearth since it needs addons like naturalearthhires which is not compatible with current version of R (RStudio 2022.02.3+492 "Prairie Trillium" Release (1db809b8323ba0a87c148d16eb84efe39a8e7785, 2022-05-16) for macOS
Mozilla/5.0 (Macintosh; Intel Mac OS X 12_4_0) AppleWebKit/537.36 (KHTML, like Gecko) QtWebEngine/5.12.10 Chrome/69.0.3497.128 Safari/537.36.

2) The source of data is uncertain e.g. the USGS data? It would be useful to have links directly to these sources.
3). Running large datasets like the 130 MB alaska (GILM data) takes forever on a regular computer. It would have been much better to demonstrate with a smaller set. Overall I am giving thumbs-up by but if there were an intermediate rating system I would give this presentation a three-star out of five mainly since this is not reproducible.

haraldurkarlsson
Автор

Seems straight forwards but I am getting an error when I attempt to plot the combined map - it says that "Shape contains invalid polygons". When I try to run it with "tmap_options(check.and.fix = TRUE)" then RStudio simply hangs up. Any suggestions?

haraldurkarlsson