Subsetting
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In research communities (for example, earth sciences), subsetting is the process of retrieving just the parts of large files which are of interest for a specific purpose. This occurs usually in a client—server setting, where the extraction of the parts of interest occurs on the server before the data is sent to the client over a network. The main purpose of subsetting is to save bandwidth on the network and storage space on the client computer.
Subsetting may be favorable for the following reasons:[1]
- restrict the time range
- select cross sections of data
- select particular kinds of time series
- exclude particular obersvations
References
- ^ SAS Institute (1 August 2012). SAS/ETS 12.1 User's Guide. SAS Institute. p. 70. ISBN 978-1-61290-379-8.