. do example.do

. * nwcommands tutorial 4: a reproducible workflow
. * Requires the core nwcommands.
. version 17

. clear all

. set seed 20261031

. 
. * 1. Raw data: one file of ties, one file of people (written here so the script is self-contained)
. input str6 ego str6 alter

           ego      alter
  1. "Ann" "Bob"
  2. "Ann" "Cy"
  3. "Bob" "Cy"
  4. "Cy"  "Dee"
  5. "Dee" "Eli"
  6. "Eli" "Fay"
  7. "Dee" "Fay"
  8. end

. export delimited using "edges.csv", replace
file edges.csv saved

. clear

. input str6 name str6 dept byte age

          name       dept       age
  1. "Ann" "sales" 31
  2. "Bob" "sales" 45
  3. "Cy"  "tech"  38
  4. "Dee" "tech"  29
  5. "Eli" "tech"  52
  6. "Fay" "sales" 41
  7. end

. export delimited using "people.csv", replace
file people.csv saved

. 
. * 2. Read the ties and build the network
. clear

. import delimited using "edges.csv", varnames(1) stringcols(_all) clear
(encoding automatically selected: ISO-8859-1)
(2 vars, 7 obs)

. nwfromedge ego alter, name(friends) undirected

. nwsummarize friends
--------------------------------------------------
   Network name:  friends
   Network id:  1
   Directed: false
   Valued: false
   Two-mode: false
   Nodes: 6
   Selfloop: false
   Edges: 7
   Minimum value:  0
   Maximum value:  1
   Density:  .467
   Temporal: false

. 
. * 3. Attach the node attributes by name
. generate name = _nwnode

. preserve

. import delimited using "people.csv", varnames(1) stringcols(1 2) clear
(encoding automatically selected: ISO-8859-1)
(3 vars, 6 obs)

. tempfile people

. save `people'
file /var/folders/hx/2zp2k5ps2y7d_6hx015fcr1h0000gn/T//S_66581.000002 saved as .dta format

. restore

. merge 1:1 name using `people', nogenerate

    Result                      Number of obs
    -----------------------------------------
    Not matched                             0
    Matched                                 6  
    -----------------------------------------

. list, noobs

  +-----------------------------------------+
  | _nwnode   _nwinc~e   name    dept   age |
  |-----------------------------------------|
  |     Ann          1    Ann   sales    31 |
  |     Bob          1    Bob   sales    45 |
  |      Cy          1     Cy    tech    38 |
  |     Dee          1    Dee    tech    29 |
  |     Eli          1    Eli    tech    52 |
  |-----------------------------------------|
  |     Fay          1    Fay   sales    41 |
  +-----------------------------------------+

. 
. * 4. Analyse and keep the results as variables
. nwdegree friends, generate(deg) silent

. nwbetween friends, generate(btw) silent
----------------------------------------
  Network name: friends
----------------------------------------
    Betweenness centrality

. list name dept age deg btw, noobs

  +--------------------------------+
  | name    dept   age   deg   btw |
  |--------------------------------|
  |  Ann   sales    31     2     0 |
  |  Bob   sales    45     2     0 |
  |   Cy    tech    38     3     6 |
  |  Dee    tech    29     3     6 |
  |  Eli    tech    52     2     0 |
  |--------------------------------|
  |  Fay   sales    41     2     0 |
  +--------------------------------+

. 
. * 5. Save everything: network and attributes in one file
. nwsave friends_project, replace

. nwclear

. clear

. nwuse friends_project

. nwsummarize friends
--------------------------------------------------
   Network name:  friends
   Network id:  1
   Directed: false
   Valued: false
   Two-mode: false
   Nodes: 6
   Selfloop: false
   Edges: 7
   Minimum value:  0
   Maximum value:  1
   Density:  .467
   Temporal: false

. 
. * 6. Hand the network to another program
. nwtoedge friends

. keep if friends == 1
(14 observations deleted)

. keep _ego _alter

. export delimited using "friends_edges.csv", replace
(file friends_edges.csv not found)
file friends_edges.csv saved

. type friends_edges.csv
_ego,_alter
Bob,Ann
Cy,Ann
Cy,Bob
Dee,Cy
Eli,Dee
Fay,Dee
Fay,Eli

.