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How to
recognize patterns in data
•What patterns matter for people –
and how do we recognize them?
•Weight and Height are easy to measure
•Knowing how they are related gives insight
into health
•A given weight tends to go with a given
height
•Weight either very high or very low
compared to trend ARE important
•Plot weight vs. height and look for
deviations from simple line
•Example of cars from the book
–Note “main sequence” of cars
–Weight plotted backwards
•Just make main sequence a line
which goes down rather than up
which goes down rather than up
–Points off main sequence are
“unusual” cars
“unusual” cars
From our text: Horizons, by Seeds