Facebook data analysis using r

Outline Introduction Permissions User Details Status Likes Groups Pages NewsFeed Posts Friends Picture Others
Facebook Data Analytics using R
Dr. C. Naga Raju
Associate Professor & Head
Praveen Kumar D
Research Scholar
Department of Computer Science & Engineering
YSREC of Yogi Vemana University, Proddatur
Kadapa Dt., A. P, India
July 29, 2016
Yogi Vemana University, Proddatur, Kadapa
July 29, 2016 Slide: 1 / 41

1 Introduction
2 Get permissions from facebook
3 Extract Facebook user details with R
4 Update Facebook status with R
5 Extract list of likes of a Facebook friend
6 Search a Group in Facebook with R
7 Search pages that mention a string
8 Extract Recent Posts from the Authenticated user’s newsfeed
9 Extract a post details
10 Extract List of Friends with their Information
11 Extract Facebook Picture of Authenticated User
12 Other Functions in Rfacebook Package
July 29, 2016 Slide: 2 / 41

Requirements
If we want to analyze the facebook data with R following are
require
’Rfacebook’, ’RCrul’ packages in R language
Permissions to access facebook data
July 29, 2016 Slide: 3 / 41

Installation & Importing of Rfacebook
In R programming we install packages by using
install.packages(”Package Name”) function. i.e
install.packages(”Rfacebook”)
install.packages(”RCrul”)
Load Rfacebook & RCrul packages in R using following code
require(”Rfacebook”) or library(”Rfacebook”)
require(”RCrul”) or library(”RCrul”)
July 29, 2016 Slide: 4 / 41

Graph API Explore
If we want to access the facebook data we must have the
facebook account.
For accessing facebook data we used one tool it is Graph API
Explore available in www.facebook.com with provided link:
https://developers.facebook.com/tools/explorer
July 29, 2016 Slide: 5 / 41

Graph API Explore Screen shot
July 29, 2016 Slide: 6 / 41

Obtaining Access Token
When someone connects with an app using Facebook Login, the
app will be able to obtain an access token which provides
temporary, secure access to Facebook APIs.
July 29, 2016 Slide: 7 / 41

Get Permission from Facebook
We get permission from facebook by using Graph API Explore by
Click on Get Token button, When we click on Get token following
screen will display:
July 29, 2016 Slide: 8 / 41

Select the Required Permission from Facebook
Choose what kind of facebook data you need to access and click
on Get Access Token
July 29, 2016 Slide: 9 / 41

Check Authentication from Facebook
It will ask login you are not logged in. Other wise it ask few
options like change access permission of logged user and also
shown what permissions it allow to analysis.
July 29, 2016 Slide: 10 / 41

Access Token from Graph API Tool
Finally it will generate Access token. Copy access token for further
accessing in R language.
That access token valid only 2 hours.
July 29, 2016 Slide: 11 / 41

Get Permanent Access Token
We already discussed Access key is temporary and it is valid
up to 120 minutes.
If we want a permanent access key we need to create an
Facebook app and from there we get the access key.
(https://developers.facebook.com/apps/) for more details
Here already an YVU App is created with Uid and Secret key
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Get Permanent Access Token
From the above we get App ID and by clicking show button
we get App Secret Key.
Using fboAuth() method we store key permanently.
Example:
fb oauth <- fbOAuth (aid=”1702xx”, a secret=”2f9xx”, permissions = T)
Storing and loading this in a ﬁle:
save(fb oauth, file="fb oauth")
load("fb oauth")
Future we will use fb oauth as an access token
July 29, 2016 Slide: 13 / 41

getUsers()
Definition
getUsers() retrieves public information about one or more
Facebook users and private information of the main User.
After version 2.0 of the Facebook API, only id, name, and
picture are available through the API. All the remaining fields
will be missing.
Syntax: getUsers(users, token, private info = FALSE)
It extract information like User Id, name, username, first name,
middle name, last name, gender, locale, category, likes, picture
If we provide private info as TRUE, along with above details
it provides birthday , Location, hometown, relationship status etc
July 29, 2016 Slide: 14 / 41

Example to Extract Public Details of User From Facebook
For extracting facebook user details we require ‘Rfacebook’
package and ‘Access Token’ We already get these.
Source code
require("Rfacebook")
load("fb oauth")
me< −getUsers("me",token=
fb oauth )
me # printing output
OUTPUT
Id: 57142XXXXX
name: PraveenKumar Donta
username: NA
ﬁrst name: PraveenKumar
middle name: NA
last name: Donta
gender : male
locale : en US
category : NA
likes : NA
picture : NA
July 29, 2016 Slide: 15 / 41

Example to Extract Private Details of User From Facebook
Add private info is TRUE to get the Private details of the User.
Source code
load("fb oauth")
me< −getUsers("me",token=
fb oauth,private info=T)
me # printing output
Output
Id: 57142XXXXX
name: PraveenKumar Donta
username: NA
ﬁrst name: PraveenKumar
middle name: NA
last name: Donta
gender : male
locale : en US
category : NA
likes : NA
picture : NA
birthday : 04/21/1990
Location : Cumbum, A. P, India
hometown : Giddalur
relationship status : Single
July 29, 2016 Slide: 16 / 41

updateStatus()
Deﬁnition
updateStatus() sends a status update that will be displayed on the
Facebook proﬁle of the authenticated user.
Syntax: updateStatus(text, token, link = NULL)
From above text is a string of message we want to post
status. token means Access token
July 29, 2016 Slide: 17 / 41

Example to Update Facebook status with R
Source code
load("fb oauth")
text< −"Hi.. This post is
posted from R"
updateStatus(text,fb oauth, link
= NULL)
Output
July 29, 2016 Slide: 18 / 41

Example to Update Facebook status along with Link with
R
Source code
load("fb oauth")
text< −"Hi.. This post is
posted from R"
link="https://www.youtube.com/
watch?v=Fa9gghVBlk4"
updateStatus(text,fb oauth,
link)
Output
July 29, 2016 Slide: 19 / 41

getLikes()
Deﬁnition
getLikes() retrieves information about a friend’s likes. To retrieve
the number of likes for a page
Syntax: getLikes(user, n , fb oauth )
From above user is any valid user id, fb oauth means Access
token and ’n’ indicates max number of like you want to
retrieve.
This method gives output as "id" "names" "website"
July 29, 2016 Slide: 20 / 41

Example to Extract list of likes of a Facebook friend
Source code
load("fb oauth")
likes< −getLikes(‘me’, n = 500,
token= fb oauth )
table(likes)
Output
July 29, 2016 Slide: 21 / 41

searchGroup()
Deﬁnition
Use searchGroup() in combination with getGroup to scrape public
posts on Facebook groups.
Syntax: searchGroup(name, token)
From above name is any valid String, token means Access
token
This method gives output as "name" "privacy" "id"
July 29, 2016 Slide: 22 / 41

Example to Extract list of Groups with given string
Source code
load("fb oauth")
name< −"india"
groups< −searchGroup(name,
fb oauth )
table(groups)
Output
Name Privacy ID
Indian Job Seekers CLOSED 664407993570414
INDIAN PAINT-
INGS
OPEN 162815470570453
Jobs In India OPEN 655519397913849
IEEE Computer
Society - India
Council
CLOSED 338878412832563
Indian superstar
prince mahesh
babu fans
CLOSED 238349126246139
india OPEN 121233277959929
July 29, 2016 Slide: 23 / 41

getGroup()
Deﬁnition
getGroup() retrieves information from a public Facebook group.
Syntax: getGroup(group id, token, n = 100, since =
NULL, until = NULL)
From above group id is any valid Id of a open group, token
means Access token
This method gives output as from id","from name",
"message", "created time", , "type", "link", "id"
, "likes count", "comments count", "shares count"
July 29, 2016 Slide: 24 / 41

Example to Extract list of Posts in a open Group
Source code
load("fb oauth")
group id=655519397913849
groupdetails< −getGroup(group id
, token=fb oauth, n = 100, since
= NULL, until = NULL)
groupdetails
Output
from id: 1700931806812215
from name: Swarna Cherukuri
message:
http://tollywoodmonkeys.com/jet-airways-walkin-
freshers-for-cabin-crew-from-dec-1-to-dec-12/
created time: 2015-12-06T05:22:49+0000
type: link
link:
http://tollywoodmonkeys.com/jet-airways-walkin-
freshers-for-cabin-crew-from-dec-1-to-dec-12/
id: 655519397913849 743777472421374
likes count: 20
comments count: 13
shares count: 3
Complete output in a text ﬁle: ClickHere
July 29, 2016 Slide: 25 / 41

searchPages()
Deﬁnition
searchPages()retrieves public pages that mention a given keyword
Syntax: searchPages(name, token , n)
From above name is any valid String, token means Access
token and n indicates number of maximum pages retrieve.
This method gives output as id, about, category,
description, general info, likes, link, city,
state, country, latitude, longitude, name,
talking about count, username , website
July 29, 2016 Slide: 26 / 41

Example to Search pages & its information that mention a
string
Source code
load("fb oauth")
pages < − searchPages(
string="university", token=
fb oauth, n=500 )
pages
Output
Id: 14483644XXX
about: Indian Space Research Organization
category: Govt. Org.
description: Driven by inquisitiveness, Mankinds....
general info:NA likes: 1117479
link: https://www.facebook.com/ISRO/
city: Bangalore
state: NA
country: India
latitude: 13.03825
longitude:77.56492
name: ISRO - Indian Space Research Organisation
talking about count: 6378
username: ISRO
website: http://www.isro.gov.in
July 29, 2016 Slide: 27 / 41

getPage()
Deﬁnition
getPage() retrieves information from a public Facebook page. Note
that information about users that have turned on the ”follow”
option on their proﬁle can also be retrieved with this function
Syntax: getPage(page, fb oauth , n = 80, since =
NULL, until = NULL, feed = FALSE)
From above page is any valid Page id, fb oauth means Access
token and n indicates retrieve maximum number of post in a
page .
This method gives output as "from id" "from name"
"message" "created time" "type" "link" "id"
"likes count" "comments count" "shares count"
July 29, 2016 Slide: 28 / 41

Example to Extract list of posts from a public Facebook
page
Source code
load("fb oauth")
page< −1448364408720250
pdetails < − getPage(page,
fb oauth, n = 10, since = NULL,
until = NULL, feed = FALSE)
pdetails # printing
Output
from id: 1448364408720250
from name: ISRO - Indian Space Research Organisation
message: A Kannada poem about the NAVIC
constellati....
created time: 2016-05-04T05:44:52+0000
type: ”photo”
link:
https://www.facebook.com/ISRO/photos/a.1448404935382864.1
id: 1448364408720250 1727183020838386
likes count: 672 comments count: 69 shares count: 124
July 29, 2016 Slide: 29 / 41

getNewsfeed()
Deﬁnition
getNewsfeed() retrieves status updates from the authenticated
user’s News Feed
Syntax: getNewsfeed(token, n)
From above token means Access token (Must be the extended
access token) and n indicates number of maximum posts
retrieve.
This method gives output as "from id", "from name",
"to id", "to name", "message" , "created time",
"type", "link", "id" , "likes count",
"comments count", "shares count"
July 29, 2016 Slide: 30 / 41

Example to Extract list of posts from a public Facebook
page
Source code
load("fb oauth")
news < −
getNewsfeed(token=fb oauth)
news # printing
Output
from id: 290897664260544
from name: The BACK Benchers
to id: NA
to name: NA
message: THAT DIFFERENCE...
created time: 2016-05-09T12:00:00+0000
type: photo
link:
https://www.facebook.com/the.../photos/a.715704...1.10737418
id: 290897664260544 1421818854501747
likes count: 46362
comments count: 237
shares count: 8194
July 29, 2016 Slide: 31 / 41

getPost()
Deﬁnition
getPost() retrieves information about a public Facebook post,
including list of comments and likes.
Syntax: getPost(post, token, n, comments = TRUE,
likes = TRUE, n.likes = n, n.comments = n)
From above token means Access token, n indicates number of
maximum posts retrieve and post indicates postID.
This method gives output as "post", "likes",
"comments"
July 29, 2016 Slide: 32 / 41

Example to Extract Likes and Comment details of a Post
Source code
load("fb oauth")
postid="1909681024XX 54558XX"
Postdetails < − getPost(postid,
fb oauth, n = 10, comments =
TRUE, likes = TRUE,n.likes = n,
n.comments = n)
Postdetails # printing
Output
id: 1909681024XX 54558XX
likes count: 112214
comments count: 1235
share count: 124
July 29, 2016 Slide: 33 / 41

getFriends()
Definition
getFriends() retrieves information about the user’s friends.
Syntax: getFriends(token, simplify = FALSE)
From above token means Access token, simplify If TRUE,
function will return only name and id for each friend. If
FALSE, it will return additional information from their
profiles: gender, birthday, location, hometown, relationship
status and profile picture.
This function requires the use of a OAuth token with
extended permissions and only friends who are using the
application (Facebook App) that you used to generate the
token to query the API will be returned.
July 29, 2016 Slide: 34 / 41

Example to Extract Friends Information
Source code
load("fb oauth")
my friends < −
getFriends(token=fb oauth,
simplify = TRUE)
my friends # printing output
Output
Currently no user accessing App.
so No output
July 29, 2016 Slide: 35 / 41

Facebook Profile Picture Extraction
If we want to extract facebook profile picture we need httr package
along with Rfacebook it is also installed. In this package we have
to use two function: GET() and content() to extract the image.
Syntax of GET():
GET(url = NULL, config = list(), ..., handle = NULL)
Syntax of content():
content(x, as = NULL, type = NULL, encoding = NULL,
...)
We get URL of profile picture from Graph API tool
https://graph.facebook.com/me/picture?fields=url,redire
July 29, 2016 Slide: 36 / 41

Example to Extract Proﬁle Picture from Facebook
Source code
query < −
’https://graph.facebook.com/me
/picture? fields=
url,redirect=FALSE’
z = GET(query, config=fb oauth)
z1 = content(z)
z1<-as.Image(z1) # Convert raw
data to image
image(rotate(z1,-90))
Output
July 29, 2016 Slide: 37 / 41

Extract All Images of Authenticated User at a time
library(Rfacebook)
library(RImageJROI)
library(EBImage)
query< −"https://graph.facebook.com/v2.6/me?fields=photos.limit(100)%
7Bpicture%7D&access token=EAACEdEose0cBANsOCg0ufGUQaESdpwEyYs4vG"
z< −callAPI(query, fb oauth)
library("tm")
MC tokenizer(z[1][1]$photos[1][[1]])
scan tokenizer(z[1][1]$photos[1][[1]])
strsplit space tokenizer < − function(x)
unlist(strsplit(as.String(x), " "))
z4< −strsplit space tokenizer(z[1][1]$photos[1][[1]])
z5< −matrix(z4, ncol = 4, byrow = TRUE)
detach("package:tm", unload=TRUE)
for(i in 1:100){ query< −z5[i,2]
z< −GET(query, config=fb oauth)
z1< − as.Image(content(z))
z1< −image(rotate(z1,-90))
}
July 29, 2016 Slide: 38 / 41

Output of all images
Display all images one on another.
July 29, 2016 Slide: 39 / 41

Other Functions in Rfacebook Package
Following packages are not working in current version of Graph
API Tool due to security& privacy issue.
getCheckins() retrieves information about a friend’s
checkins
getInsights() Extract Insights metric from a Facebook
page (admin role required)
getFQL() connects to Facebook’s Graph API and executes a
FQL query.
searchFacebook() retrieves public status updates that
mention a given keyword
July 29, 2016 Slide: 40 / 41

thank You
July 29, 2016 Slide: 41 / 41

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