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Facebook Mining
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# go to 'https://developers.facebook.com/tools/explorer' to get your access token | |
access_token <- "******************* INPUT YOUR ACCESS TOKEN ******************************" | |
require(RCurl) | |
require(rjson) | |
# Facebook json function copied from original (Romain Francois) post | |
facebook <- function( path = "me", access_token, options){ | |
if( !missing(options) ){ | |
options <- sprintf( "?%s", paste( names(options), "=", unlist(options), collapse = "&", sep = "" ) ) | |
} else { | |
options <- "" | |
} | |
data <- getURL( sprintf( "https://graph.facebook.com/%s%s&access_token=%s", path, options, access_token ) ) | |
fromJSON( data ) | |
} | |
### MY FACEBOOK POSTS | |
myposts <- list() | |
i <- 0 | |
next.path <- "me/posts" | |
# download all my posts | |
while(length(next.path)!=0) { | |
i<-i+1 | |
myposts[[i]] <- facebook(path=next.path , access_token=access_token) | |
next.path <- sub("https://graph.facebook.com/", "", myposts[[i]]$paging$'next') | |
} | |
myposts[[i]] <- NULL | |
# parse the list, extract number of likes and the corresponding text (status) | |
parse.master <- function(x, f) | |
sapply(x$data, f) | |
parse.likes <- function(x) if(!is.null(x$likes$count)) x$likes$count else 0 | |
mylikes <- unlist(sapply(myposts, parse.master, f=parse.likes)) | |
parse.messages <- function(x) if(!is.null(x$message)) x$message else NA | |
mymessages <- unlist(sapply(myposts, parse.master, f=parse.messages)) | |
# and the most liked status is... | |
mymessages[which.max(mylikes)] | |
### TED FACEBOOK PAGE | |
# http://www.facebook.com/TED | |
# TED's Facebook ID 29092950651 can be found on http://graph.facebook.com/TED | |
ted <- list() | |
i<-0 | |
next.path <- "29092950651/posts" | |
# download all TED posts | |
while(length(next.path)!=0) { | |
i<-i+1 | |
ted[[i]] <- facebook( path=next.path , access_token=access_token) | |
next.path <- sub("https://graph.facebook.com/","",ted[[i]]$paging$'next') | |
} | |
ted[[i]] <- NULL | |
# parse just video links posted by TED | |
parse.count.ted <- function(x) | |
if (x$type=="link" & x$from$id=="29092950651") x$likes$count else NA | |
parse.link.ted <- function(x) | |
if (x$type=="link" & x$from$id=="29092950651") x$link else NA | |
ted.counts <- unlist(sapply(ted, parse.master, f=parse.count.ted)) | |
ted.links <- unlist(sapply(ted, parse.master, f=parse.link.ted)) | |
# see three most popular talks | |
ted.links[order(ted.counts,decreasing=TRUE)][1:3] |
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