addhealth: Udry, Harris- Adolescent Health Networks (Addhealth)
In zalmquist/networkdata: Lin Freeman's Network Data Collection

Description Usage Details Source Examples

addhealth: Eighty-Four valued 25 by 25 to 2587 by 2587 matrices.

BACKGROUND The ADD HEALTH data are constructed from the in-school questionnaire; 90,118 students representing 84 communities took this survey in 1994-95. Some communities had only one school; others had two. Where there are two schools in a community students from one school were allowed to name friends in the other, the "sister school."

Each student was given a paper-and-pencil questionnaire and a copy of a roster listing every student in the school and, if the community had two schools, the student s provided with the roster of the "sister" school. The name generator asked about five male and five female friends separately. The question was, "List your closest (male/female) friends. List your best (male/female) friend first, then your next best friend, and so on. (girls/boys) may include (boys/girls) who are friends and (boy/girl) friends." For each friend named, the student was asked to check off whether he/she participated in any of five activities with the friend. These activities were:

1. you went to (his/her) house in the last seven days.
2. you met (him/her) after school to hang out or go somewhere in the last seven days.
3. you spent time with (him/her) last weekend.
4. you talked with (him/her) about a problem in the last seven days.
5. you talked with (him/her) on the telephone in the last seven days.

These activities were summed to create a valued network. Ties range in value from 1, meaning the student nominated the friend but reported no activities, to 6, meaning the student nominated the friend and reported participating in all five activities with the friend.

Because nominations to friends in the sister school were allowed, the networks here are reported at the community level. When two schools were present in a community the data file includes a node-level indicator for school code, so one can easily extract choices from the separate schools.

1	data(addhealth)

comm_1 : 71 by 71 directed valued network
comm_2 : 109 by 109 directed valued network
comm_3 : 32 by 32 directed valued network
comm_4 : 291 by 291 directed valued network
comm_5 : 159 by 159 directed valued network
comm_6 : 111 by 111 directed valued network
comm_7 : 457 by 457 directed valued network
comm_8 : 205 by 205 directed valued network
comm_9 : 254 by 254 directed valued network
comm_10 : 685 by 685 directed valued network
comm_11 : 426 by 426 directed valued network
comm_12 : 586 by 586 directed valued network
comm_13 : 689 by 689 directed valued network
comm_14 : 569 by 569 directed valued network
comm_15 : 1089 by 1089 directed valued network
comm_16 : 795 by 795 directed valued network
comm_17 : 1246 by 1246 directed valued network
comm_18 : 290 by 290 directed valued network
comm_19 : 495 by 495 directed valued network
comm_20 : 922 by 922 directed valued network
comm_21 : 380 by 380 directed valued network
comm_22 : 626 by 626 directed valued network
comm_23 : 679 by 679 directed valued network
comm_24 : 876 by 876 directed valued network
comm_25 : 828 by 828 directed valued network
comm_26 : 563 by 563 directed valued network
comm_27 : 1229 by 1229 directed valued network
comm_28 : 1168 by 1168 directed valued network
comm_29 : 578 by 578 directed valued network
comm_30 : 746 by 746 directed valued network
comm_31 : 900 by 900 directed valued network
comm_32 : 877 by 877 directed valued network
comm_33 : 2250 by 2250 directed valued network
comm_34 : 1681 by 1681 directed valued network
comm_35 : 873 by 873 directed valued network
comm_36 : 2209 by 2209 directed valued network
comm_37 : 427 by 427 directed valued network
comm_38 : 542 by 542 directed valued network
comm_39 : 1008 by 1008 directed valued network
comm_40 : 2037 by 2037 directed valued network
comm_41 : 2100 by 2100 directed valued network
comm_42 : 1512 by 1512 directed valued network
comm_43 : 1723 by 1723 directed valued network
comm_44 : 1147 by 1147 directed valued network
comm_45 : 1047 by 1047 directed valued network
comm_46 : 1550 by 1550 directed valued network
comm_47 : 998 by 998 directed valued network
comm_48 : 1184 by 1184 directed valued network
comm_49 : 1929 by 1929 directed valued network
comm_50 : 2587 by 2587 directed valued network
comm_51 : 790 by 790 directed valued network
comm_52 : 1799 by 1799 directed valued network
comm_53 : 647 by 647 directed valued network
comm_54 : 1107 by 1107 directed valued network
comm_55 : 357 by 357 directed valued network
comm_56 : 467 by 467 directed valued network
comm_57 : 1282 by 1282 directed valued network
comm_58 : 1778 by 1778 directed valued network
comm_59 : 1007 by 1007 directed valued network
comm_60 : 1216 by 1216 directed valued network
comm_61 : 1898 by 1898 directed valued network
comm_62 : 1111 by 1111 directed valued network
comm_63 : 100 by 100 directed valued network
comm_64 : 710 by 710 directed valued network
comm_65 : 566 by 566 directed valued network
comm_66 : 655 by 655 directed valued network
comm_67 : 530 by 530 directed valued network
comm_68 : 1460 by 1460 directed valued network
comm_69 : 904 by 904 directed valued network
comm_70 : 76 by 76 directed valued network
comm_71 : 74 by 74 directed valued network
comm_72 : 358 by 358 directed valued network
comm_73 : 1650 by 1650 directed valued network
comm_74 : 730 by 730 directed valued network
comm_75 : 1011 by 1011 directed valued network
comm_76 : 44 by 44 directed valued network
comm_77 : 25 by 25 directed valued network
comm_78 : 436 by 436 directed valued network
comm_79 : 1235 by 1235 directed valued network
comm_80 : 624 by 624 directed valued network
comm_81 : 1383 by 1383 directed valued network
comm_82 : 946 by 946 directed valued network
comm_83 : 1338 by 1338 directed valued network
comm_84 : 1755 by 1755 directed valued network

Vertex Attributes
sex: is coded 1=male, 2=female, 0=unreported.
race: is coded 1=white, 2=black, 3=hispanic, 4=asian, 5=mixed/other, 0=unreported.
grade: is recorded as a number between 7 and 12 with 0=unreported.
school: is coded as 0 and 1 when two schools were in a single community.

Moody, James, Peer influence groups: identifying dense clusters in large networks, Social Networks, 2001, 23: 261-283.

data(addhealth)

##Plot
plot(addhealth$comm_1,vertex.col="sex")

##Vertex attributes
addhealth$comm_84%v%"sex"
addhealth$comm_84%v%"race"
addhealth$comm_84%v%"grade"
addhealth$comm_84

##Edge attribute
as.sociomatrix(addhealth$comm_1,attr="edgevalue")