December 2, 2013
By

(This article was first published on Blag's bag of rants, and kindly contributed to R-bloggers)

I love to have fun with R and Twitter…there are a lot of cool things that you can do with it…so I just thought of having a small Twitter Battle application…something that will grab the number of followers and lists from two users…apply some crappy algorithms and determine the Twitter importance between those users…using our .RData file that holds the Twitter OAuth info…

`require("Rook")library("ROAuth")library("twitteR")setwd("C:/Blag/R_Scripts/Important_Scripts")load("credentials.RData")Get_Percentages<-function(p_one,p_two,flag){      if(p_one > p_two){        if(flag == 0){          OneFollowPercent<-100          TwoFollowPercent<-round((p_two * 100) / p_one)        }else{          TwoFollowPercent<-100 - (round((p_two * 100) / p_one))          if(TwoFollowPercent <= 49){            OneFollowPercent<-50 + TwoFollowPercent            TwoFollowPercent<-100 - OneFollowPercent            flag<-0          }else{            OneFollowPercent<-50 + TwoFollowPercent            TwoFollowPercent<-100 - TwoFollowPercent            TwoFollowPercent<-100 - round((round(TwoFollowPercent * 100) / OneFollowPercent))            OneFollowPercent<-TwoFollowPercent            TwoFollowPercent<-100 - OneFollowPercent            flag<-1          }        }      }      if(p_one < p_two){        if(flag == 0){          OneFollowPercent<-round((p_one * 100) / p_two)          TwoFollowPercent<-100        }else{          OneFollowPercent<-100 - (round((p_one * 100) / p_two))          if(OneFollowPercent <= 49){            TwoFollowPercent<-50 + OneFollowPercent            OneFollowPercent<-100 - TwoFollowPercent            flag<-0          }else{            TwoFollowPercent<-50 + OneFollowPercent            OneFollowPercent<-100 - OneFollowPercent            OneFollowPercent<-100 - round((round(OneFollowPercent * 100) / TwoFollowPercent))            TwoFollowPercent<-OneFollowPercent            OneFollowPercent<-100 - TwoFollowPercent            flag<-1          }        }      }      if(p_one == p_two){        OneFollowPercent<- 50        TwoFollowPercent<- 50      }      percents<-c(OneFollowPercent,TwoFollowPercent,flag)      return(percents)}newapp<-function(env){  req<-Rook::Request\$new(env)  res<-Rook::Response\$new()  res\$write('<form method="POST">\n')  res\$write('Enter your Twitter username: <input type="text" name="YourUserName">')  res\$write('</BR>')  res\$write('Enter your his/her Twitter username: <input type="text" name="HisHerUserName">')  res\$write('</BR>')  res\$write('<input type="submit" name="Start the Battle!">')  res\$write('</form>')      if (!is.null(req\$POST())) {    YourUserName = paste("@",req\$POST()[["YourUserName"]],sep="")    HisHerUserName = paste("@",req\$POST()[["HisHerUserName"]],sep="")        reg<-registerTwitterOAuth(credentials)        GetYourUser<-getUser(YourUserName,cainfo="cacert.pem")    GetHisHerUser<-getUser(HisHerUserName,cainfo="cacert.pem")        GetYourFollowers<-GetYourUser\$followersCount    GetYourLists<-GetYourUser\$listedCount    GetHisHerFollowers<-GetHisHerUser\$followersCount    GetHisHerLists<-GetHisHerUser\$listedCount    FollowPercents<-Get_Percentages(GetYourFollowers,GetHisHerFollowers,0)    ListPercents<-Get_Percentages(GetYourLists,GetHisHerLists,0)    YourPercents<-FollowPercents[1] + ListPercents[1]    HisHerPercents<-FollowPercents[2] + ListPercents[2]    FinalPercents<-Get_Percentages(YourPercents,HisHerPercents,1)    YourPercents<-FinalPercents[1]    HisHerPercents<-FinalPercents[2]    if(FinalPercents[3] == 0){      DiffPercent<-abs(YourPercents - 50)    }else{      DiffPercent<-FinalPercents[1]    }        if(YourPercents > HisHerPercents){      message<-paste(req\$POST()[["YourUserName"]],"is",DiffPercent,                     " % more important on Twitter than",req\$POST()[["HisHerUserName"]],sep=" ")      res\$write(paste('<H1>',message,'</H1>'))       }    if(YourPercents < HisHerPercents){      message<-paste(req\$POST()[["YourUserName"]],"is",DiffPercent,                     " % less important on Twitter than",req\$POST()[["HisHerUserName"]],sep=" ")      res\$write(paste('<H1>',message,'</H1>'))    }    if(YourPercents == HisHerPercents){      message<-paste(req\$POST()[["YourUserName"]],                     "is equally important on Twitter as",req\$POST()[["HisHerUserName"]],sep=" ")      res\$write(paste('<H1>',message,'</H1>'))    }        pieValues<-c(YourPercents,HisHerPercents)    pieNames<-c(paste(req\$POST()[["YourUserName"]],YourPercents,"%"),                      paste(req\$POST()[["HisHerUserName"]],HisHerPercents,"%"))        png("Twitter_Battle.png",width=1000,height=700)    pie(pieValues,labels=pieNames,main="Twitter Battle")    dev.off()    res\$write("<div align='center'>")    res\$write(paste("<img src='", server\$full_url("pic"), "/",                     "Twitter_Battle.png'", "/>", sep = ""))        res\$write("</div>")}  res\$finish()}server = Rhttpd\$new()server\$add(app = newapp, name = "Twitter_Battle")server\$add(app = File\$new("C:/Blag/R_Scripts/Important_Scripts"), name = "pic")server\$start()server\$browse("Twitter_Battle")`

When we execute it…we’re going to have some interesting results…

Have fun with it -;)
Greetings,
Blag.

R-bloggers.com offers daily e-mail updates about R news and tutorials on topics such as: Data science, Big Data, R jobs, visualization (ggplot2, Boxplots, maps, animation), programming (RStudio, Sweave, LaTeX, SQL, Eclipse, git, hadoop, Web Scraping) statistics (regression, PCA, time series, trading) and more...