Hello epi community,
I wrote the following code to produce a plot map using a shapefile in the format of:
Health_Districts__2022_.shx
I was able to import the file with no issues, but when I wrote code to plot the map I received the following error message:
#Plot Points
ggplot(data = LA_county_hospital_data_sf) +
geom_sf()
#Plot health district boundaries
ggplot(data = Health_Districts__2022_) +
geom_sf()
#plot using the health districts map
ggplot(data = Health_Districts__2022_) +
geom_sf()
ggplot() +
geom_sf(data = Health_Districts__2022_, fill = “white”) + # plot the boundaries first, white color
geom_sf(data = LA_county_hospital_data_sf) # plot the points on top of the boundaries
#error message
Error in st_transform.sfc(X[[i]], …) :
cannot transform sfc object with missing crs
What caused this error and how do I fix it?