GUS 0821 Lecture Notes - Lecture 13: Modifiable Areal Unit Problem, Statistical Classification, Tweeter

• School: Temple University
• Department: Geography and Urban Studies
• Course: GUS 0821
• Professor: Khusdeep Malhorta

Document Summary

Map abstraction: classification, classification is the process of grouping things into classes, or categories. We see this in the world all the time. Lets find out: refer back to what you learned about scale in the last class. In this view, it"s a s(cid:373)all s(cid:272)ale (cid:373)ap. You (cid:272)a(cid:374) see all of the u : now lets zoom in, you can see now that the giant red cluster begins to break up . I"(cid:448)e zoo(cid:373)ed i(cid:374) so (cid:373)u(cid:272)h that you (cid:272)a(cid:374) a(cid:272)tually see (cid:374)a(cid:373)es of states a(cid:374)d cities appear. Plus they would compromise the privacy of the tweeter. So the map maker has mapped tweets by county instead: that is they have summed up the number of hate tweets in each county and then made a heat map of that. They are just choices made to present the data in the best manner so we can learn from maps.