University of Limerick Institutional Repository

SADI: sequence analysis tools for stata

DSpace Repository

Show simple item record Halpin, Brendan 2014-04-15T15:50:15Z 2014-04-15T15:50:15Z 2014
dc.description non-peer-reviewed en_US
dc.description.abstract SADI is a suite of Stata tools for sequence analysis, with a particular focus on holistic comparisons of sequences using measures such as optimal matching distance. It provides a number of distance measures, including • Optimal matching distance • Hamming distance • Dynamic Hamming distance • Elzinga’s combinatorial X/t measure and • TWED, a time-warping distance measure. It provides a number of utilities for graphing sequence-related data, for summarising sequences, and for handling sequences in general. The main alternatives to SADI are the Stata SQ package (Brzinsky-Fay, Kohler&Luniak, 2006), and the R package TraMineR (Gabadinho, Ritschard, Studer & Müller, 2009). SADI provides some tools that are not in SQ, and is much faster for some important functions. TraMineR is pretty attractive for those working in R, but SADI makes it possible to do a lot in a Stata environment, and has distance measures that are not in TraMineR. Since some of the distance measures are relatively intensive to calculate, they are implemented as C plugins, rather than pure Stata or Mata code. This means that they are available only for Windows and Linux, 32- and 64-bit. If you would like to compile them for another platform, please contact Brendan Halpin,, or see section 5. This document summarises the functionality offered by SADI, with worked examples, and reproduces the help files (see section 6). Many of the measures in SADI are discussed in detail in Halpin (2014) and Halpin (2012). en_US
dc.language.iso eng en_US
dc.publisher Department of Sociology, University of Limerick en_US
dc.relation.ispartofseries Department of Sociology Working Paper;WP2014-03
dc.subject SADI en_US
dc.subject sequence analysis en_US
dc.title SADI: sequence analysis tools for stata en_US
dc.type info:eu-repo/semantics/workingPaper en_US
dc.type.supercollection all_ul_research en_US
dc.rights.accessrights info:eu-repo/semantics/openAccess en_US

Files in this item

This item appears in the following Collection(s)

Show simple item record

Search ULIR


My Account