group1d groups or clusters values of a variable ordered in one dimension. Natural examples are the values of a variable sorted from smallest to largest, the values of a time series, or the values of a spatial series along or down a profile, transect, core, borehole, etc. n values are clustered into one or more contiguous groups, the (k - 1) boundaries between k groups being chosen to minimise the sum of the within-cluster sums of squared deviations from cluster means over the comb(n - 1, k - 1) possible clusterings. The clustering produced is guaranteed optimal, but it may not be unique.
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Publisher Info
Software component provided by Boston College Department of Economics in its series Statistical Software Components with number
S456844.
Size: Programming language: Stata Requires: Stata version 9 Date of creation: 23 May 2007 Date of revision: Handle: RePEc:boc:bocode:s456844
Note: This module may be installed from within Stata by typing "ssc install group1d". Windows users should not attempt to download these files with a web browser. Contact details of provider: Postal: Boston College, 140 Commonwealth Avenue, Chestnut Hill MA 02467 USA Phone: 617-552-3670 Fax: +1-617-552-2308 Email: Web page: http://fmwww.bc.edu/EC/ More information through EDIRC