Massachusetts Institute of Technology
Department of Urban Studies and Planning
| 11.188: Urban Planning and Social Science
Laboratory |
Lab Exercise 6: Raster Spatial Analysis
This lab exercise would normally be due on April 6, 2020, but is
entirely optional due to Covid-19 disruption.
(1) What are the original and interpolated values for the grid cell
in the Northwest (upper left) part of Cambridge
that contains the most expensive Realprice value in the original sale89
data set?
Original sales89 value: ___________
sales89_pw2-2 value: ____________
sales89_pw1 value: ______________
(2) What is this interpolated value of sales89_1000m
for the cell with the highest-price sale: ___________? Why is this
estimate even higher than the power=2 estimate?
(3) Find the cell containing the highest priced sales89 home in the
northwest part of Cambridge. What is the interpolated value of that
cell using the two methods based on med_hvalue?
hvalue_point value:
_______________
hvalue_poly value: ________________
(4) Comment briefly on some of the characteristics of this interpolated
surface of med_hvalue compared with the ones derived from the sales89
data. Are the hot-spots more concentrated or diffuse? Does one or
another approach lead to a broader range of spatial variability?
(5) What is the interpolated housing value based on the Raster
Calculator average of the sales89_pw2-2
and hval_non0 estimates for the
cell containing the 20 Coolidge Ave sale on March 15, 1989
(in the Southwest portion of Cambridge)? (Also be sure to turn in the PDF of
your ArcMap layout.)
Last modified: March 29, 2020 by
[jf]
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