Mistake in challenge in Lesson 7

[S-D-Miller]

What is the problem?

In Lesson 7 - Vector Shapefile Attributes in R, there is an error in the Challenge "Plot Line Width by Attribute". In the second line of the plotting code in the solution:

geom_sf(data = lines_HARV, aes(size = TYPE)) +

should be:

geom_sf(data = lines_HARV, aes(linewidth = TYPE)) +

Using size in aes() doesn't change the linewidth properly in the figure. The figure in the solution should also be updated to show the true solution.

Location of problem (optional)

https://datacarpentry.github.io/r-raster-vector-geospatial/07-vector-shapefile-attributes-in-r.html

[jonjab]

yes definitely. this has been there a while. I have eliminated size= completely from episode 7, along with the following changes from other issues:

#256 -- cutting the formatting that never gets demonstrated
#341 -- softened the transition from points to lines
#262
#357
#356 -- dplyr is needed, and I added the other necessary libraries
#436 -- removing hard-coded maintainers list.