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Spatial Point Patterns
book

Spatial Point Patterns

by Adrian Baddeley, Ege Rubak, Rolf Turner
November 2015
Intermediate to advanced content levelIntermediate to advanced
828 pages
33h 11m
English
Chapman and Hall/CRC
Content preview from Spatial Point Patterns
Collecting and Handling Point Pattern Data 59
3.4.3 D ata entry checking
Initial exploration of data should include checks for errors in data entry. Typing and transcription
errors tend to produce outliers, which will be revealed by graphica l methods such as histograms a nd
boxplots of the data.
One very basic and easy step in che c king over a point pattern for data problems is to print
out the c oordinate values and mark s using as.data.frame(X) or v iew them in a spreadsheet-
like interface using View(X). Use head(as.data.frame(X)) to print only the top few lines, or
page(as.data.frame(X),method="print")to print the data a page at a time. Visually scanning
the data in this way can often reveal obvious errors in da ta entry. Errors can be cor r ...
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Publisher Resources

ISBN: 9781482210217