Applying Analytics

154 Applying Analytics: A Practical Introduction

longitudes, the seco nd contained the latitudes, and the final list co ntained the

elevation at that latitude-longitude loca tio n. Each list had 72,451 elements.

I restructured these lists into a 2-dimensional structure, with the x measure-

ment loc ation array containing the longitudes and the y measurement location

array the latitudes. I did this because this structure is more c onducive to the

techniques I am interested in applying.

Restructuring can also change a 2-dimensional data set into a set of related

lists. In Chapter 3, I discussed a variety of techniques that could be applied

to lists, such ...