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Chemotherapy for Advanced Osteogenic Sarcoma and Ewing’s Sarcoma
Chapter 10
From Data Management to Advanced
Analytical Approaches: Connecting
R to the Database
Bram Van Moorter
Abstract The previous chapters explored the wide set of tools that PostgreSQL and
PostGIS offer to manage tracking data. In this chapter, you will expand database
functionalities with those provided by dedicated software for statistical computing
and graphics: the R programming language and software environment. Specifically,
you will use the advanced graphics available through R and its libraries (especially
‘adehabitat’) to perform exploratory analysis of animal tracking data. This data
exploration is followed with two short ecological analyses. These ecological anal-
yses are discussed in the context of two central concepts in animal space use: geo-
graphic versus environmental space, and the spatiotemporal scale of the research
question. In the first analysis, you investigate the animal’s home range, which is its
use of geographic space. In the second, to explore an animal’s use of environmental
space we introduce briefly the study of both use and selection of environmental
features by animals. For both demonstrations we consider explicitly the temporal
scale of the study through the seasonal changes introduced by seasonal migration.
Introduction: From Data Management to Data Analysis
In previous chapters, you explored the wide set of tools that PostgreSQL and PostGIS
offer to process and analyse tracking data. Nevertheless, a database is not specifically
designed to perform advanced statistical analysis or to implement complex analytical
algorithms, which are key elements to extract scientific knowledge from the data for
both fundamental and applied research. In fact, these functionalities must be part of
an information system that aims at a proper handling of wildlife tracking data. The
possibility of a tighter integration of analytical functions with the database is
B. Van Moorter ()
Norwegian Ins
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