Abstract:
The term sq refers to sequence data and to the commands for analyzing these data. Sequences are entities build by a limited number of elements that are ordered in a specific way. A typical example is the human DNA, where the "Elements" Adenin, Cytosin, Guanin and Thymin (the "organic Bases") are ordered into a sequence. Other sequences are songs, that are build by tones that appear in a specific order, or careers of employers that are build by specific job-positions and ordered along time. Sequence data are data that contains one variable holding the elements, one variable that contain the position of each elements within this sequence, and one variable that identifies the sequences itself. Hence, sequence data requires data that are set up in what Stata usually calls the "long form". This version is updated from that published in Stata Journal, 2006, 6:4.
Language: Stata Requires: Stata version 9 Keywords:sequence data; DNA; tabulation; graphics; matching; cluster analysis (search for similar items in EconPapers) Date: 2006-08-08 Note: This module may be installed from within Stata by typing "ssc install sq". Windows users should not attempt to download these files with a web browser.
More software in Statistical Software Components from Boston College Department of Economics Address: Boston College, 140 Commonwealth Avenue, Chestnut Hill MA 02467 USA Contact information at EDIRC. Series data maintained by Christopher F Baum ().
This site is part of RePEc
and all the data displayed here is part of the RePEc data set.
Is your work missing from RePEc? Here is how to
contribute.
Questions or problems? Check the EconPapers FAQ or send mail to .