{smcl} {* 16sep2009}{...} {hline} help for {hi:stata2pajek} {hline} {title:Export data to Pajek .net format} {p 8 17 2} {cmd:stata2pajek} {it:ego alter}[, {cmdab:edges tiestrength() filename()}] {title:Description} {p 4 4 2} {cmd:stata2pajek} exports data to the ".net" format read by Pajek, Network Workbench, and many other social network analysis packages. {title:Remarks} {p 4 4 2} The program assumes that you already have used Stata to create an edge list or arc list. You specify which (string or numeric) variable identifies ego and which alter. Specifying a tie strength variable is optional. {cmd:stata2pajek} converts this to .net format, which is a Windows-formatted text file beginning with a list of vertices (aka nodes) and their labels, followed by a list of ties (arcs or edges). {p 4 4 2} As an alternative to this program, you may wish to use {cmd:outsheet} then process the saved output with the Windows program txt2pajek. {p 4 4 2} Note that {cmd:stata2pajek} treats the Stata versions of your id variables as labels even if they are numeric. Thus if you have a node called #15 in Stata it will not necessarily also be called #15 in Pajek. Please see the vertice section of the .net file (which is human-readable text) to see the correspondence. {title:Options} {p 4 8 2} {cmd:edges} specifies that ties should be treated as edges (symmetrical ties). The default is to treat ties as arcs (directed ties). {p 4 8 2} {cmd:filename()} allows you to name the output file. By default it is named mypajekfile.net {title:Examples} {p 4 8 2}{cmd:. *create a random network with 10 nodes and export it as pajek}{p_end} {p 4 8 2}{cmd:. clear}{p_end} {p 4 8 2}{cmd:. set obs 200}{p_end} {p 4 8 2}{cmd:. gen i=int(uniform()*10)+1}{p_end} {p 4 8 2}{cmd:. gen j=int(uniform()*10)+1}{p_end} {p 4 8 2}{cmd:. contract i j, freq(strength)}{p_end} {p 4 8 2}{cmd:. drop if i==j}{p_end} {p 4 8 2}{cmd:. sort i j}{p_end} {p 4 8 2}{cmd:. stata2pajek i j, tiestrength(strength) filename(samplerandomnetwork)}{p_end} {title:Author} {p 4 4 2}Gabriel Rossman, UCLA{break} rossman@soc.ucla.edu {title:Also see} {p 4 13 2}On-line: help for {help outsheet}