CHAPTER: Points

[darribas]

Issue set up to track "Chapter 9: Point Pattern Analysis"

[ljwolf]

todo:

• move airports geoprocessing stuff out to the relevant geoprocessing chapter
• add centrography on tokyo data
• add statistical testing on tokyo data

[ljwolf]

Need to:

1. rewrite for the performant numpy-oriented API (few changes)
2. add questions

[darribas]

Review is being coordinated over at #135

[darribas]

Comments from the review, to discuss:

• We use one function, once that requires OpenCV, which is a pretty hefty install. Could we consider removing it?
• The Centrography and Randomness sections make use of bold font to signify specific techniques. This is useful, but it's also the only case I can think of in the book where we do this. Do we want to keep the pattern across? Do we want to remove it?
• I have left some of the code cells that are clearly written to be hidden from the reader on, but we should open a new issue to track application of this feature across the book.
• We originally say we analyse three Ripley's functions, but then we only expose the $G$ and the $F$. Dis we intend to use $K$? Should we include it?

[darribas]

After c088181 , review at #135 ready to be merged by either @sjsrey or @ljwolf

[ljwolf]

Refer to baddeley book for further info on this chapter