. do example.do . * nwcommands tutorial 11: brokerage and structural holes . * Requires the core nwcommands. . nwwebuse florentine, nwclear . nwsummarize flomarriage -------------------------------------------------- Network name: flomarriage Network id: 2 Directed: false Valued: false Two-mode: false Nodes: 16 Selfloop: false Edges: 20 Minimum value: 0 Maximum value: 1 Density: .167 Temporal: false . describe, short Contains data from /Users/tgrund/FILES_NEW/SOFTWARE/nwcommands_main/data/florentine.nwdta Observations: 16 Variables: 5 16 May 2019 17:02 Sorted by: Note: Dataset has changed since last saved. . list in 1/4 +--------------------------------------------------+ | _nwnode _nwinc~e wealth priora~s seat | |--------------------------------------------------| 1. | acciaiuoli 1 10 53 1 | 2. | albizzi 1 36 65 1 | 3. | barbadori 1 55 0 0 | 4. | bischeri 1 44 12 1 | +--------------------------------------------------+ . . * 1. Burt's structural holes: constraint . nwburt flomarriage ---------------------------------------- Network name: flomarriage ---------------------------------------- Burt structural hole measures Variable | Obs Mean Std. dev. Min Max -------------+--------------------------------------------------------- _effsize | 16 2.166667 1.355373 0 5.666667 _efficiency | 16 .8350694 .2614593 0 1 _constraint | 16 .5494792 .3071544 0 1 _hierarchy | 15 .2800012 .44961 0 1 . nwconstraint flomarriage, name(floconstraint) . nwsummarize floconstraint -------------------------------------------------- Network name: floconstraint Network id: 3 Directed: true Valued: true Two-mode: false Nodes: 16 Selfloop: false Arcs: 110 Minimum value: 0 Maximum value: 1 Density: .458 Temporal: false . nwdegree flomarriage, generate(deg) ---------------------------------------- Network name: flomarriage ---------------------------------------- Degree distribution deg | Freq. Percent Cum. ------------+----------------------------------- 0 | 1 6.25 6.25 1 | 4 25.00 31.25 2 | 2 12.50 43.75 3 | 6 37.50 81.25 4 | 2 12.50 93.75 6 | 1 6.25 100.00 ------------+----------------------------------- Total | 16 100.00 Degree centralization: .267 . nwclustering flomarriage, generate(clu) silent . nwbetween flomarriage, generate(btw) silent ---------------------------------------- Network name: flomarriage ---------------------------------------- Betweenness centrality . sort _nwnode . list _nwnode deg btw clu _effsize _constraint if deg>=3, noobs +--------------------------------------------------------------+ | _nwnode deg btw clu _effsize _const~t | |--------------------------------------------------------------| | albizzi 3 19.33333 0 3 .3333333 | | bischeri 3 9.5 .3333333 2.333333 .4822531 | | castellani 3 5 .3333333 2.333333 .4822531 | | guadagni 4 23.16667 0 4 .25 | | medici 6 47.5 .0666667 5.666667 .2098765 | |--------------------------------------------------------------| | peruzzi 3 2 .6666667 1.666667 .6558642 | | ridolfi 3 10.33333 .3333333 2.333333 .4598765 | | strozzi 4 9.333333 .3333333 3 .4583333 | | tornabuoni 3 8.333333 .3333333 2.333333 .4598765 | +--------------------------------------------------------------+ . . * 2. Bridges . nwbridges flomarriage, name(flobridges) ------------------------------ Network : flomarriage Directed : false Bridges : 5 Type : global ------------------------------ . nwsummarize flobridges -------------------------------------------------- Network name: flobridges Network id: 4 Directed: false Valued: false Two-mode: false Nodes: 16 Selfloop: false Edges: 5 Minimum value: 0 Maximum value: 1 Density: .0417 Temporal: false . . * 3. Gould-Fernandez brokerage roles . nwwebuse sampson, nwclear . nwsymmetrize samplike, generate(likes) . encode faction, generate(fnum) . nwbrokerage samplike, group(fnum) generate(brk) (note: tie values are ignored; this measure is binary) ---------------------------------------- Network name: samplike Two-paths classified: 224 Role | Total -------------------+--------------- coordinator | 56 gatekeeper | 80 representative | 69 consultant | 5 liaison | 14 . gsort -brk_gatekeeper . list _nwnode faction brk_gatekeeper brk_representative brk_liaison in 1/5, noobs +--------------------------------------------------------+ | _nwnode faction brk_ga~r brk_re~e brk_li~n | |--------------------------------------------------------| | Gregory Turks 16 0 0 | | John Bosco Turks 12 16 7 | | Bonaventure Loyal 9 8 3 | | Albert Turks 9 0 0 | | Victor Loyal 8 6 0 | +--------------------------------------------------------+ . . * 4. Hierarchy and Simmelian ties . nwsimmelian likes, name(strong) (note: tie values are ignored; this measure is binary) . nwsummarize strong -------------------------------------------------- Network name: strong Network id: 6 Directed: false Valued: true Two-mode: false Nodes: 18 Selfloop: false Edges: 57 Minimum value: 0 Maximum value: 1 Density: .373 Temporal: false . nwsimmelian samplike, name(strongdir) (note: tie values are ignored; this measure is binary) . nwsummarize strongdir -------------------------------------------------- Network name: strongdir Network id: 7 Directed: true Valued: true Two-mode: false Nodes: 18 Selfloop: false Arcs: 32 Minimum value: 0 Maximum value: 1 Density: .105 Temporal: false .