open data master classes: introduction to hands-on practical session

Geography Information 101,and Introduction to the Hands-on

Practical

Jeremy MorleyDeputy Director

Centre for Geospatial Science,University of Nottingham

Hands-on Practical• An opportunity to work with real Open Data• Relatively simple examples but designed to link

thematically to the Geovation challenges• Mostly geographically related analysis, though some

analysis in Excel too

• First, some introduction to key concepts• Acknowledgment: Geo-Refer project, University of

Southampton, http://www.restore.ac.uk/resources/grefer.php

So many reference zones to choose from...

Zones Matter!"How to Lie with Maps" by Mark Monmonier

(see Chapter 9 (first edition))"How to Lie with Maps" by Mark Monmonier

(see Chapter 9 (first edition))

1000 100 50 100 50 100 50

200 100 200 100 200 100 200

100 200 100 4000 100 200 100

200 400 200 400 200 400 3000Number of televisions

2000 200 100 200 100 200 100

200 100 200 100 200 100 200

100 200 100 4000 100 200 100

100 200 100 200 100 200 1500Number of households

Televisions per household

0.5 0.5 0.5 0.5 0.5 0.5 0.5

1.0 1.0 1.0 1.0 1.0 1.0 1.0

1.0 1.0 1.0 1.0 1.0 1.0 1.0

2.0 2.0 2.0 2.0 2.0 2.0 2.0

AggregationNumber of TVs

Number of h'holds

TVs per h'hold

1450

5900

4800

2900

5900

2400

0.5

1.0

2.0

Aggregation (2)2300 5700 4150

0.74 1.04 1.60

3100 5500 2600

Number of TVs

Number of h'holds

TVs per h'hold

Aggregation (3)Number of TVs

Number of h'holds

TVs per h'hold

1100

3550

4100

34002200

3200

4100

17000.5

1.11

1.0

2.0

http://www.statistics.gov.uk/geography/beginners_guide.asp

Practical work• Divided into three phases (no formal break)• Phase 1: introduction to taking a table of points &

related attributes, doing some data analysis in Excel then plotting the points on a map

• Phase 2: looking at joining data from different sources to produce a new picture of an area

• Phase 3: advanced challenges.– First leads on from Phase 2: further analysis– Second relates to joining to complex admin units

http://neighbourhood.statistics.gov.uk/dissemination

Enjoy the practical session

• Four of us around to help you with problems:– Myself, Hanif Rahemtulla [Uni. Nottingham]– Chris Parker & Ian Holt [OS Geovation]

• Jeremy MorleyCentre for Geospatial Science, Uni. Nottinghamhttp://www.nottingham.ac.uk/cgs@ jeremy_morley [Twitter]