. * nwsaom tutorial 1: a first SAOM on the Glasgow friendship data . * Requires the core nwcommands and the package nwsaom. . . nwsaom version nwsaom version 1.1.1, 27oct2026 core package nwcommands : installed (development copy, no distribution date) native plugin : .../ (plugin build 140) compared with : R RSiena 1.6.14 license : GNU GPL-3 . nwwebuse glasgow, nwclear . describe Contains data from https://raw.githubusercontent.com/thomas-u-grund/nwcommands/main/data/glasgow.nwdta Observations: 50 Variables: 11 14 May 2019 16:09 ------------------------------------------------------------------------------------------------------------------------- Variable Storage Display Value name type format label Variable label ------------------------------------------------------------------------------------------------------------------------- _nwnode str3 %9s _nwinclude float %9.0g alcohol1 byte %20.0g alclbl alcohol2 byte %20.0g alclbl alcohol3 byte %20.0g alclbl smoke1 byte %11.0g smklbl smoke2 byte %11.0g smklbl smoke3 byte %11.0g smklbl sport1 byte %11.0g sprlbl sport2 byte %11.0g sprlbl sport3 byte %11.0g sprlbl ------------------------------------------------------------------------------------------------------------------------- Sorted by: Note: Dataset has changed since last saved. . nwsaom describe, waves(glasgow1 glasgow2 glasgow3) Network data: 3 waves, 50 actors, directed ------------------------------------------------------------------------------------------------------------------------- wave ties density avg. degree 1 113 0.0461 2.260 2 116 0.0473 2.320 3 122 0.0498 2.440 ------------------------------------------------------------------------------------------------------------------------- period kept created dissolved Jaccard Hamming 1->2 57 59 56 0.331 115 2->3 66 56 50 0.384 106 ------------------------------------------------------------------------------------------------------------------------- . . nwsaom, waves(glasgow1 glasgow2 glasgow3) outdegree reciprocity transtrip samex(smoke1) seed(1) ------------------------------------------------------------------------------------------------------------------------- SAOM (Method of Moments, conditional), waves: glasgow1 glasgow2 glasgow3 Actors: 50 Periods: 2 ------------------------------------------------------------------------------------------------------------------------- ------------------------------------------------------------------------------------------------------------------------- glasgow1_t~3 | Coefficient Std. err. z P>|z| [95% conf. interval] -------------+---------------------------------------------------------------- outdegree | -2.7657 .1525954 -18.12 0.000 -3.064781 -2.466618 reciprocity | 2.455705 .1983861 12.38 0.000 2.066875 2.844534 samex_smoke1 | .1333049 .1456629 0.92 0.360 -.1521891 .418799 transtrip | .6194921 .0767219 8.07 0.000 .46912 .7698642 ------------------------------------------------------------------------------------------------------------------------- Rate parameters (estimated, one per inter-wave period): | period1 period2 -------------+--------------------- rate | 6.4783 5.2605 se | 1.1113 0.8674 Overall maximum convergence ratio: 0.097 (criterion: below 0.25; met) Convergence t-ratios (criterion: all below 0.1 in absolute value): met . nwsaom, waves(glasgow1 glasgow2 glasgow3) outdegree reciprocity transtrip samex(smoke1) seed(1) detail ------------------------------------------------------------------------------------------------------------------------- SAOM (Method of Moments, conditional), waves: glasgow1 glasgow2 glasgow3 Actors: 50 Periods: 2 ------------------------------------------------------------------------------------------------------------------------- ------------------------------------------------------------------------------------------------------------------------- glasgow1_t~3 | Coefficient Std. err. z P>|z| [95% conf. interval] -------------+---------------------------------------------------------------- outdegree | -2.7657 .1525954 -18.12 0.000 -3.064781 -2.466618 reciprocity | 2.455705 .1983861 12.38 0.000 2.066875 2.844534 samex_smoke1 | .1333049 .1456629 0.92 0.360 -.1521891 .418799 transtrip | .6194921 .0767219 8.07 0.000 .46912 .7698642 ------------------------------------------------------------------------------------------------------------------------- Rate parameters (estimated, one per inter-wave period): | period1 period2 -------------+--------------------- rate | 6.4783 5.2605 se | 1.1113 0.8674 (conditional: rate = mean time to reach the observed distance, se = its SD) RSiena effect names: samex_smoke1 same smoke1 Convergence t-ratios (criterion: every |t| below 0.1; the overall maximum ratio below 0.25 is a separate criterion): outdegree 0.072 reciprocity 0.072 samex_smoke1 0.094 transtrip 0.061 Overall maximum convergence ratio: 0.097 .