There is one file in text format that comprise data from the
electronic small-world experiment. 

FILE NAME: linksDataPublic.txt
-----------------------------
This is the main data file that includes all sender-recipient pairs (links). It is a
text file and the format is created for easy input to R statistical
software.

The first line lists the names of all variables, and starting at the
second line, the first column is link identification numbers; the rest of the
columns are variable values described below. "NA" indicates
unavailable data.

Each line consists of the demographic information of a sender
(sendId) and information about the relationships between a sender
(sendId) and a recipient (recId). The demographic information of a
recipient is only available if the recipient passed on the message and
hence became a sender.

For example, user#77093 sent to user#77107 (link #1), 
and user#77107 sent to user#77142 (link #42849). Thus, the demographic
for user#77903 is available in link#1, and the demographic for
user#77107 is in link#42849. We don't have information about
user#77142 because the user didn't respond or come to our site to fill
in the demographic survey.

Note that user#77101 also initiated a chain to reach target#16 (link#6530).


1. "comp"
Indicates whether the link is a part of a completed chain (comp=1) or
not (comp=0).

2. "cont"
Indicates whether the recipient continued to pass on the message
(cont=1) or not (cont=0).

3. "step"
Indicates the position of the pair in chain.
step1=the first link in the chain.
step2=the second link in the chain.
and so on.

4. "target"
The target of each link. There are 18 targets and each chain starter was
given a target randomly.
t1 means that the particular link was trying to reach target #1

Target	City	Country	Occupation	Gender 
1	Novosibirsk	Russia	PhD student	F
2	New York	USA	Writer	F
3	Bandung	Indonesia	Unemployed	M
4	New York	USA	Journalist	F
5	Ithaca	USA	Professor	M
6	Melbourne	Australia	Travel Consultant	F
7	Bardufoss	Norway	Army Veterinarian	M
8	Perth	Australia	Police Officer	M
9	Omaha	USA	Life Insurance Agent	F
10	Welwyn Garden City	UK	Retired	M
11	Paris	France	Librarian	F
12	Talinn	Estonia	Archival Inspector	M
13	Munich	Germany	Journalist	M
14	Split	Croatia	Student	M
15	Gurgaon	India	Technology Consultant	M
16	Managua	Nicaragua	Computer Analyst	M
17	Katikati	New Zealand	Potter	M
18	Elderton	USA	Lutheran Pastor	M



5. "how"
Responds to the question on how did senders know recipients
how1=family
how2=mutual friend
how3=school
how4=work
how5=internet
how6=other

6. "nature"
The nature of relationship between senders and recipients
nat1=parent
nat2=child
nat3=sibling
nat4=relative
nat5=in-law
nat6=spuse or significant other
nat7=ex
nat8=friend
nat9=coworker
nat10=teacher
nat11=student
nat12=client
nat13=service provider
nat14=spiritual guide
nat15=other

7. "well"
The strength of relationships between senders and recipients
well1=extremely close
well2=very close
well3=fairly close
well4=casually
well5=not close

8. "why"
Reasons why senders chose recipients
why1=geographically closer to targets
why2=similar profession to targets
why3=similar education background with targets
why4=works bring contact to people similar to targets
why5=other

9. "female"
Gender of the sender
0=male
1=female

10. "age"
Age of the sender
age1=<=17
age2=18-29
age3=30-39
age4=40-49
age5=50-59
age6=>=60

11. "nonwhite" (ethnicity)
Ethnicity of the sender
0=white
1=non white

12. "edu"
Education level of the sender

edu1=elementary school
edu2=high school
edu3=college/university
edu4=graduate school

13. "work"
Work/industry of the sender

work1=science,education
work2=arts,culture,advertising,media
work3=information tech.,telecommunications
work4=military,police,government,local administration
work5=other

14. "pos" (position)
Position of the sender

pos1=entrepreneur,chief executive,executive,manager
pos2=specialist,engineer,technical personnel
pos3=student
pos4=unemployed,retired
pos5=other

15. "income"
Income of the sender

inc1=very low
inc2=low
inc3=average
inc4=high
inc5=very high

16. "religion"
Religion of the sender

relig1=Christianity
relig2=Islam
relig3=Judaism
relig4=Buddhism
relig5=Hindu
relig6=None
relig7=other

17. "country"
Country of origion of the sender

Standard two letters identification for each country in the world

18. "sendId"
Identification number for the sender

19. "recId"
Identification number for the recipient
recID=TARGET if the recipient is the target.