Soliver Fusi
Soliver Fusi
The link to the ggplot cheatsheet is broken: [ggplot2 cheatsheet](https://rstudio.com/wp-content/uploads/2019/01/Cheatsheets_2019.pdf): A helpful cheatsheet to ggplot2. Don't have a good one to suggest though
The whole matrix below is quite challenging to follow. It's unclear the traslation that is happen. The notes attempt to help but I think they could be more explicit. #...
I think the Challenge 2: Read in and check out new data section needs some effort to edit. The nlcd@legend has no data. Even when brought into the memory with...
CRS Transformations st_crs(DEM_NAD83) == st_crs(SFtracts_NAD83) is true because the CRS' are both NAD83, but the former has EPSG",9122 and the latter "EPSG",4269. So the workaround: DEM_NAD83 = projectRaster(DEM, projectExtent(DEM, st_crs(SFtracts_NAD83)$proj4string))...
I wondering if the subheadings could be more informative There are name 'Explore the Structures'. Maybe 'Explore the Structures - Memory' and 'Explore the Structures - dropping', etc. could be...
Broken link : Challenge 2: Read in and check out new data You have another raster dataset in your ./data directory. The file is called nlcd2011_sf.tif. This is data from...
I think how projectExtent is used can be explained a bit more explicitly in the following code: DEM_NAD83 = projectRaster(DEM, projectExtent(DEM, st_crs(SFtracts_NAD83))) since there are a few nested functions. It's...
We say "NAD27 is old and inaccurate! Don't use it." and then use the DEM in Section 1 that uses NAD27... and then we later transform the other data into...
In the code chunk {r} # Quick summary stats summary(DEM) summary(DEM[,]) freq(DEM) maxValue(DEM) minValue(DEM) res(DEM) i get an NA - although it worked in one of the videos. the documentation...
It seems there are additional data added if the join = st_within is not specified. Original code: tracts_acs_sf_ac2