Friends: final project code

Packages and data

library(tidyverse) # data manipulation

## ── Attaching packages ─────────────────────────────────────── tidyverse 1.3.1 ──

## ✓ ggplot2 3.3.5     ✓ purrr   0.3.4
## ✓ tibble  3.1.5     ✓ dplyr   1.0.7
## ✓ tidyr   1.1.4     ✓ stringr 1.4.0
## ✓ readr   2.0.1     ✓ forcats 0.5.1

## ── Conflicts ────────────────────────────────────────── tidyverse_conflicts() ──
## x dplyr::filter() masks stats::filter()
## x dplyr::lag()    masks stats::lag()

library(tm) # text mining

## Loading required package: NLP

## 
## Attaching package: 'NLP'

## The following object is masked from 'package:ggplot2':
## 
##     annotate

library(wordcloud) # word cloud generator

## Loading required package: RColorBrewer

library(wordcloud2) # word cloud generator
library(tidytext) # text mining for word processing and sentiment analysis
library(reshape2) # reshapes a data frame

## 
## Attaching package: 'reshape2'

## The following object is masked from 'package:tidyr':
## 
##     smiths

library(radarchart) # drawing the radar chart from a data frame
library(RWeka) # data mining tasks

# script data

# season 1 scripts
episode1 <- read.csv("/Users/nikohellman/Desktop/friends scripts/FriendsEp1withScene.csv")
episode2<- read.csv("/Users/nikohellman/Desktop/friends scripts/FriendsEp2withScene.csv")
episode3<- read.csv("/Users/nikohellman/Desktop/friends scripts/FriendsEp3withScene.csv")
episode4<- read.csv("/Users/nikohellman/Desktop/friends scripts/FriendsEp4withScene.csv")
episode5<- read.csv("/Users/nikohellman/Desktop/friends scripts/FriendsEp5withScene.csv")
episode6<- read.csv("/Users/nikohellman/Desktop/friends scripts/FriendsEp6withScene.csv")
episode7<- read.csv("/Users/nikohellman/Desktop/friends scripts/FriendsEp7withScene.csv")
episode8<- read.csv("/Users/nikohellman/Desktop/friends scripts/FriendsEp8withScene.csv")
episode9<- read.csv("/Users/nikohellman/Desktop/friends scripts/FriendsEp9withScene.csv")
episode10<- read.csv("/Users/nikohellman/Desktop/friends scripts/FriendsEp10withScene.csv")
episode11<- read.csv("/Users/nikohellman/Desktop/friends scripts/FriendsEp11withScene.csv")
episode12<- read.csv("/Users/nikohellman/Desktop/friends scripts/FriendsEp12withScene.csv")
episode13<- read.csv("/Users/nikohellman/Desktop/friends scripts/FriendsEp13withScene.csv")
episode14<- read.csv("/Users/nikohellman/Desktop/friends scripts/FriendsEp14withScene.csv")
episode15<- read.csv("/Users/nikohellman/Desktop/friends scripts/FriendsEp15withScene.csv")
episode16<- read.csv("/Users/nikohellman/Desktop/friends scripts/FriendsEp16withScene.csv")
episode17<- read.csv("/Users/nikohellman/Desktop/friends scripts/FriendsEp17withScene.csv")
episode18<- read.csv("/Users/nikohellman/Desktop/friends scripts/FriendsEp18withScene.csv")
episode19<- read.csv("/Users/nikohellman/Desktop/friends scripts/FriendsEp19withScene.csv")
episode20<- read.csv("/Users/nikohellman/Desktop/friends scripts/FriendsEp20withScene.csv")
episode21<- read.csv("/Users/nikohellman/Desktop/friends scripts/FriendsEp21withScene.csv")
episode22<- read.csv("/Users/nikohellman/Desktop/friends scripts/FriendsEp22withScene.csv")
episode23<- read.csv("/Users/nikohellman/Desktop/friends scripts/FriendsEp23withScene.csv")
episode24<- read.csv("/Users/nikohellman/Desktop/friends scripts/FriendsEp24withScene.csv")

# season 10 scripts
s10episode1 <- read.csv("/Users/nikohellman/Desktop/friends scripts/S10FriendsEp1withScene.csv")
s10episode2<- read.csv("/Users/nikohellman/Desktop/friends scripts/S10FriendsEp2withScene.csv")
s10episode3<- read.csv("/Users/nikohellman/Desktop/friends scripts/S10FriendsEp3withScene.csv")
s10episode4<- read.csv("/Users/nikohellman/Desktop/friends scripts/S10FriendsEp4withScene.csv")
s10episode5<- read.csv("/Users/nikohellman/Desktop/friends scripts/S10FriendsEp5withScene.csv")
s10episode6<- read.csv("/Users/nikohellman/Desktop/friends scripts/S10FriendsEp6withScene.csv")
s10episode7<- read.csv("/Users/nikohellman/Desktop/friends scripts/S10FriendsEp7withScene.csv")
s10episode8<- read.csv("/Users/nikohellman/Desktop/friends scripts/S10FriendsEp8withScene.csv")
s10episode9<- read.csv("/Users/nikohellman/Desktop/friends scripts/S10FriendsEp9withScene.csv")
s10episode10<- read.csv("/Users/nikohellman/Desktop/friends scripts/S10FriendsEp10withScene.csv")
s10episode11<- read.csv("/Users/nikohellman/Desktop/friends scripts/S10FriendsEp11withScene.csv")
s10episode12<- read.csv("/Users/nikohellman/Desktop/friends scripts/S10FriendsEp12withScene.csv")
s10episode13<- read.csv("/Users/nikohellman/Desktop/friends scripts/S10FriendsEp13withScene.csv")
s10episode14<- read.csv("/Users/nikohellman/Desktop/friends scripts/S10FriendsEp14withScene.csv")
s10episode15<- read.csv("/Users/nikohellman/Desktop/friends scripts/S10FriendsEp15withScene.csv")
s10episode16<- read.csv("/Users/nikohellman/Desktop/friends scripts/S10FriendsEp16withScene.csv")
s10episode17<- read.csv("/Users/nikohellman/Desktop/friends scripts/S10FriendsEp17withScene.csv")

# fix a little error i discovered when putting together all s10 episodes
s10episode11<- s10episode11%>%
  mutate(Scene=X)%>%
  select(Character, Line, Scene)
#View(s10episode11)

# lexicon data sets
bing <- read_csv("/Users/nikohellman/Desktop/sentiment analysis sets/Bing.csv")

## Rows: 6786 Columns: 2

## ── Column specification ────────────────────────────────────────────────────────
## Delimiter: ","
## chr (2): word, sentiment

## 
## ℹ Use `spec()` to retrieve the full column specification for this data.
## ℹ Specify the column types or set `show_col_types = FALSE` to quiet this message.

nrc <- read_csv("/Users/nikohellman/Desktop/sentiment analysis sets/NRC.csv")

## Rows: 13901 Columns: 2

## ── Column specification ────────────────────────────────────────────────────────
## Delimiter: ","
## chr (2): word, sentiment

## 
## ℹ Use `spec()` to retrieve the full column specification for this data.
## ℹ Specify the column types or set `show_col_types = FALSE` to quiet this message.

afinn <- read_csv("/Users/nikohellman/Desktop/sentiment analysis sets/Afinn.csv")

## Rows: 2477 Columns: 2

## ── Column specification ────────────────────────────────────────────────────────
## Delimiter: ","
## chr (1): word
## dbl (1): value

## 
## ℹ Use `spec()` to retrieve the full column specification for this data.
## ℹ Specify the column types or set `show_col_types = FALSE` to quiet this message.

Functions for text cleaning/analysis

Thanks again to Xavier on Kaggle and their Star Wars Script Analysis (https://www.kaggle.com/xvivancos/analyzing-star-wars-movie-scripts) for these functions!

# Text transformations
cleanCorpus <- function(corpus){
  corpus.tmp <- tm_map(corpus, removePunctuation)
  corpus.tmp <- tm_map(corpus.tmp, stripWhitespace)
  corpus.tmp <- tm_map(corpus.tmp, content_transformer(tolower))
  v_stopwords <- c(stopwords("english"), c("thats","weve","hes","theres","ive","im",
                                           "will","can","cant","dont","youve","us",
                                           "youre","youll","theyre","whats","didnt"))
  corpus.tmp <- tm_map(corpus.tmp, removeWords, v_stopwords)
  corpus.tmp <- tm_map(corpus.tmp, removeNumbers)
  return(corpus.tmp)
}

# Most frequent terms 
frequentTerms <- function(text){
  s.cor <- Corpus(VectorSource(text))
  s.cor.cl <- cleanCorpus(s.cor)
  s.tdm <- TermDocumentMatrix(s.cor.cl)
  s.tdm <- removeSparseTerms(s.tdm, 0.999)
  m <- as.matrix(s.tdm)
  word_freqs <- sort(rowSums(m), decreasing=TRUE)
  dm <- data.frame(word=names(word_freqs), freq=word_freqs)
  return(dm)
}

# Define bigram tokenizer 
tokenizer  <- function(x){
  NGramTokenizer(x, Weka_control(min=2, max=2))
}

# Most frequent bigrams 
frequentBigrams <- function(text){
  s.cor <- VCorpus(VectorSource(text))
  s.cor.cl <- cleanCorpus(s.cor)
  s.tdm <- TermDocumentMatrix(s.cor.cl, control=list(tokenize=tokenizer))
  s.tdm <- removeSparseTerms(s.tdm, 0.999)
  m <- as.matrix(s.tdm)
  word_freqs <- sort(rowSums(m), decreasing=TRUE)
  dm <- data.frame(word=names(word_freqs), freq=word_freqs)
  return(dm)
}

Season 1, episode 1: The One Where Monica Gets a New roommate

# How many dialogues?
length(episode1$Line)

## [1] 320

# How many characters?
length(levels(as.factor(episode1$Character)))

## [1] 21

# Top 20 characters with more dialogues 
top.episode1.chars <- as.data.frame(sort(table(episode1$Character), decreasing=TRUE))[1:20,]
top.episode1.chars<- top.episode1.chars%>%
  filter(!(str_detect(Var1, "\\[")))

ggplot(data=top.episode1.chars, aes(x=Var1, y=Freq)) +
  geom_bar(stat="identity", fill="#56B4E9", colour="black") +
  theme(axis.text.x=element_text(angle=45, hjust=1)) +
  labs(x="Character", y="Number of lines")

#We want to highlight Monica since she is highest
try<-top.episode1.chars%>%
  mutate(topspeak=ifelse(Var1=="Monica", "1", "0"))

ggplot(data=try, aes(x=Var1, y=Freq, fill=topspeak)) +
  scale_fill_manual( values = c( "1"="red", "0"="darkgray" ), guide = "none" )+
  geom_bar(stat="identity", colour="black") +
  theme_classic()+
  theme(axis.text.x=element_text(angle=45, hjust=1)) +
  labs(x="Character(s)", y="Number of lines")

# Most frequent bigrams
episode1.bigrams <- frequentBigrams(episode1$Line)[1:20,]
ggplot(data=episode1.bigrams, aes(x=reorder(word, -freq), y=freq)) +
  geom_bar(stat="identity", fill="chocolate2", colour="black") +
  labs(x="Bigram", y="Frequency")+
  theme_classic()+
  theme(axis.text.x=element_text(angle=45, hjust=1))+
  geom_text(x=5, y=13, label="\"Cut cut\" \n is in reference to Rachel \n cutting up her dad's credit cards \n as a sign of independence", fontface='italic', size=3)

#### CUMMULATIVE LINES

episode1char<- episode1

episode1char$linenum<-1:length(episode1$Line)
episode1char$one<-rep(1, length(episode1$Line))

### Rachel
rachel<-episode1char%>%
  filter(Character=="Rachel")%>%
  select(-Line)

rachel$count<-cumsum(rachel$one)

### Monica
monica<-episode1char%>%
  filter(Character=="Monica")%>%
  select(-Line)

monica$count<-cumsum(monica$one)

### Phoebe
phoebe<-episode1char%>%
  filter(Character=="Phoebe")%>%
  select(-Line)

phoebe$count<-cumsum(phoebe$one)


### Ross
ross<-episode1char%>%
  filter(Character=="Ross")%>%
  select(-Line)

ross$count<-cumsum(ross$one)

### Chandler
chandler<-episode1char%>%
  filter(Character=="Chandler")%>%
  select(-Line)

chandler$count<-cumsum(chandler$one)

### Joey
joey<-episode1char%>%
  filter(Character=="Joey")%>%
  select(-Line)

joey$count<-cumsum(joey$one)

###### RBIND

timeline<-rbind(rachel, monica, phoebe,
                ross, chandler, joey)

ggplot(timeline, aes(x=linenum, y=count, color=Character))+
  geom_line()

####Season 1, episode 24 (season finale): The One Where Rachel Finds Out

# How many dialogues?
length(episode24$Line)

## [1] 273

# How many characters?
length(levels(as.factor(episode24$Character)))

## [1] 19

# Top 20 characters with more dialogues 
top.episode24.chars <- as.data.frame(sort(table(episode24$Character), decreasing=TRUE))[1:20,]
top.episode24.chars<- top.episode24.chars%>%
  filter(!(str_detect(Var1, "\\[")))

ggplot(data=top.episode24.chars, aes(x=Var1, y=Freq)) +
  geom_bar(stat="identity", fill="#56B4E9", colour="black") +
  theme(axis.text.x=element_text(angle=45, hjust=1)) +
  labs(x="Character", y="Number of lines")

#We want to highlight Monica since she is highest
try24<-top.episode24.chars%>%
  mutate(topspeak=ifelse(Var1=="Monica", "1", "0"))

ggplot(data=try24, aes(x=Var1, y=Freq, fill=topspeak)) +
  scale_fill_manual( values = c( "1"="red", "0"="darkgray" ), guide = "none" )+
  geom_bar(stat="identity", colour="black") +
  theme_classic()+
  theme(axis.text.x=element_text(angle=45, hjust=1)) +
  labs(x="Character(s)", y="Number of lines")

# Most frequent bigrams
episode24.bigrams <- frequentBigrams(episode24$Line)[1:20,]
ggplot(data=episode24.bigrams, aes(x=reorder(word, -freq), y=freq)) +
  geom_bar(stat="identity", fill="chocolate2", colour="black") +
  labs(x="Bigram", y="Frequency")+
  theme_classic()+
  theme(axis.text.x=element_text(angle=45, hjust=1))+
  geom_text(x=5, y=13, label="\"Cut cut\" \n is in reference to Rachel \n cutting up her dad's credit cards \n as a sign of independence", fontface='italic', size=3)

#### CUMMULATIVE LINES

episode24char<- episode24

episode24char$linenum<-1:length(episode24char$Line)
episode24char$one<-rep(1, length(episode24char$Line))

### Rachel
rachel24<-episode24char%>%
  filter(Character=="Rachel")%>%
  select(-Line)

rachel24$count<-cumsum(rachel24$one)

### Monica
monica24<-episode24char%>%
  filter(Character=="Monica")%>%
  select(-Line)

monica24$count<-cumsum(monica24$one)

### Phoebe
phoebe24<-episode24char%>%
  filter(Character=="Phoebe")%>%
  select(-Line)

phoebe24$count<-cumsum(phoebe24$one)


### Ross
ross24<-episode24char%>%
  filter(Character=="Ross")%>%
  select(-Line)

ross24$count<-cumsum(ross24$one)

### Chandler
chandler24<-episode24char%>%
  filter(Character=="Chandler")%>%
  select(-Line)

chandler24$count<-cumsum(chandler24$one)

### Joey
joey24<-episode24char%>%
  filter(Character=="Joey")%>%
  select(-Line)

joey24$count<-cumsum(joey24$one)

###### RBIND

timeline24<-rbind(rachel24, monica24, phoebe24,
                ross24, chandler24, joey24)

ggplot(timeline24, aes(x=linenum, y=count, color=Character))+
  geom_line()

All of season 1, the first season of Friends

# all episodes dialogues 
epset <- rbind(episode1, episode2, episode3, episode4, episode5, episode6, episode7,
               episode8, episode9, episode10, episode11, episode12, episode13, episode14,
               episode15, episode16, episode17, episode18, episode19, episode20, episode21,
               episode22, episode23, episode24)

# How many dialogues?
length(epset$Line)

## [1] 6369

# How many characters?
length(levels(as.factor(epset$Character)))

## [1] 183

# Top 20 characters with more dialogues 
top.epset.chars <- as.data.frame(sort(table(epset$Character), decreasing=TRUE))[1:20,]
top.epset.chars<- top.epset.chars%>%
  filter(!(str_detect(Var1, "\\[")))

# Visualization 
ggplot(data=top.epset.chars, aes(x=Var1, y=Freq)) +
  geom_bar(stat="identity", fill="#56B4E9", colour="black") +
  theme(axis.text.x=element_text(angle=45, hjust=1)) +
  labs(x="Character", y="Number of lines")

# Most frequent bigrams
epset.bigrams <- frequentBigrams(epset$Line)[1:20,]
ggplot(data=epset.bigrams, aes(x=reorder(word, -freq), y=freq)) +  
  geom_bar(stat="identity", fill="chocolate2", colour="black") +
  theme(axis.text.x=element_text(angle=45, hjust=1)) +
  labs(x="Bigram", y="Frequency")

# Transform the text to a tidy data structure with one token per row
ftokens <- epset %>%  
  mutate(line=as.character(epset$Line)) %>%
  unnest_tokens(word, line)

# Positive and negative words - bing
ftokens %>%
  inner_join(get_sentiments("bing")) %>%
  count(word, sentiment, sort=TRUE) %>%
  acast(word ~ sentiment, value.var="n", fill=0) %>%
  comparison.cloud(colors=c("#F8766D", "#00BFC4"), max.words=100)

## Joining, by = "word"

# Sentiments and frequency associated with each word - nrc
fsentiments <- ftokens %>% 
  inner_join(nrc, "word") %>%
  count(word, sentiment, sort=TRUE) 

# Frequency of each sentiment
ggplot(data=fsentiments, aes(x=reorder(sentiment, -n, sum), y=n)) + 
  geom_bar(stat="identity", aes(fill=sentiment), show.legend=FALSE) +
  labs(x="Sentiment", y="Frequency")+
  theme(axis.text.x = element_text(angle=45, hjust=1))

# Top 10 terms for each sentiment
fsentiments %>%
  group_by(sentiment) %>%
  arrange(desc(n)) %>%
  slice(1:10) %>%
  ggplot(aes(x=reorder(word, n), y=n)) +
  geom_col(aes(fill=sentiment), show.legend=FALSE) +
  facet_wrap(~sentiment, scales="free_y") +
  labs(y="Frequency", x="Terms") +
  coord_flip() 

# Sentiment analysis for the main characters
ftokens %>%
  filter(Character %in% c("Monica","Rachel","Phoebe","Ross","Chandler",
                          "Joey")) %>%
  inner_join(nrc, "word") %>%
  count(Character, sentiment, sort=TRUE) %>%
  ggplot(aes(x=sentiment, y=n)) +
  geom_col(aes(fill=sentiment), show.legend=FALSE) +
  facet_wrap(~Character, scales="free_x") +
  labs(x="Sentiment", y="Frequency") +
  coord_flip() 

# Stopwords
mystopwords <- tibble(word=c(stopwords("english"), 
                                 c("thats","weve","hes","theres","ive","im",
                                   "will","can","cant","dont","youve","us",
                                   "youre","youll","theyre","whats","didnt")))

# Tokens without stopwords
top.chars.ftokens <- epset %>%
  mutate(line=as.character(epset$Line)) %>%
  filter(Character %in% c("Monica","Rachel","Phoebe","Ross","Chandler",
                          "Joey")) %>%
  unnest_tokens(word, line) %>%
  anti_join(mystopwords, by="word")

# Most frequent words for each character
top.chars.ftokens %>%
  count(Character, word) %>%
  group_by(Character) %>% 
  arrange(desc(n)) %>%
  slice(1:10) %>%
  ungroup() %>%
  mutate(word2=factor(paste(word, Character, sep="__"), 
                       levels=rev(paste(word, Character, sep="__"))))%>%
  ggplot(aes(x=word2, y=n)) +
  geom_col(aes(fill=Character), show.legend=FALSE) +
  facet_wrap(~Character, scales="free_y") +
  labs(x="Sentiment", y="Frequency") +
  scale_x_discrete(labels=function(x) gsub("__.+$", "", x)) +
  coord_flip() 

# Most relevant words for each character
top.chars.ftokens %>%
  count(Character, word) %>%
  bind_tf_idf(word, Character, n) %>%
  group_by(Character) %>% 
  arrange(desc(tf_idf)) %>%
  slice(1:10) %>%
  ungroup() %>%
  mutate(word2=factor(paste(word, Character, sep="__"), 
                       levels=rev(paste(word, Character, sep="__"))))%>%
  ggplot(aes(x=word2, y=tf_idf)) +
  geom_col(aes(fill=Character), show.legend=FALSE) +
  facet_wrap(~Character, scales="free_y") +
  theme(axis.text.x=element_text(angle=45, hjust=1)) +
  labs(y="tf–idf", x="Sentiment") +
  scale_x_discrete(labels=function(x) gsub("__.+$", "", x)) +
  coord_flip() 

Season 10, episode 1: The One After Joey and Rachel Kiss

# How many dialogues?
length(s10episode1$Line)

## [1] 358

# How many characters?
length(levels(as.factor(s10episode1$Character)))

## [1] 14

# Top 20 characters with more dialogues 
top.s10episode1.chars <- as.data.frame(sort(table(s10episode1$Character), decreasing=TRUE))[1:20,]
top.s10episode1.chars<- top.s10episode1.chars%>%
  filter(!(str_detect(Var1, "\\[")))

ggplot(data=top.s10episode1.chars, aes(x=Var1, y=Freq)) +
  geom_bar(stat="identity", fill="#56B4E9", colour="black") +
  theme(axis.text.x=element_text(angle=45, hjust=1)) +
  labs(x="Character", y="Number of lines")

# Most frequent bigrams
s10episode1.bigrams <- frequentBigrams(s10episode1$Line)[1:20,]
ggplot(data=s10episode1.bigrams, aes(x=reorder(word, -freq), y=freq)) +
  geom_bar(stat="identity", fill="chocolate2", colour="black") +
  labs(x="Bigram", y="Frequency")+
  theme_classic()+
  theme(axis.text.x=element_text(angle=45, hjust=1))

#### CUMMULATIVE LINES

s10episode1char<- s10episode1

s10episode1char$linenum<-1:length(s10episode1$Line)
s10episode1char$one<-rep(1, length(s10episode1$Line))

### Rachel
s10rachel<-s10episode1char%>%
  filter(Character=="Rachel")%>%
  select(-Line)

s10rachel$count<-cumsum(s10rachel$one)

### Monica
s10monica<-s10episode1char%>%
  filter(Character=="Monica")%>%
  select(-Line)

s10monica$count<-cumsum(s10monica$one)

### Phoebe
s10phoebe<-s10episode1char%>%
  filter(Character=="Phoebe")%>%
  select(-Line)

s10phoebe$count<-cumsum(s10phoebe$one)


### Ross
s10ross<-s10episode1char%>%
  filter(Character=="Ross")%>%
  select(-Line)

s10ross$count<-cumsum(s10ross$one)

### Chandler
s10chandler<-s10episode1char%>%
  filter(Character=="Chandler")%>%
  select(-Line)

s10chandler$count<-cumsum(s10chandler$one)

### Joey
s10joey<-s10episode1char%>%
  filter(Character=="Joey")%>%
  select(-Line)

s10joey$count<-cumsum(s10joey$one)

###### RBIND

s10timeline<-rbind(s10rachel, s10monica, s10phoebe,
                s10ross, s10chandler, s10joey)

ggplot(s10timeline, aes(x=linenum, y=count, color=Character))+
  geom_line()

Season 10, episode 17 (season and series finale): The Last One

# How many dialogues?
length(s10episode17$Line)

## [1] 609

# How many characters?
length(levels(as.factor(s10episode17$Character)))

## [1] 22

# Top 20 characters with more dialogues 
top.s10episode17.chars <- as.data.frame(sort(table(s10episode17$Character), decreasing=TRUE))[1:20,]
top.s10episode17.chars<- top.s10episode17.chars%>%
  filter(!(str_detect(Var1, "\\[")))

ggplot(data=top.s10episode17.chars, aes(x=Var1, y=Freq)) +
  geom_bar(stat="identity", fill="#56B4E9", colour="black") +
  theme(axis.text.x=element_text(angle=45, hjust=1)) +
  labs(x="Character", y="Number of lines")

# Most frequent bigrams
s10episode17.bigrams <- frequentBigrams(s10episode17$Line)[1:20,]
ggplot(data=s10episode17.bigrams, aes(x=reorder(word, -freq), y=freq)) +
  geom_bar(stat="identity", fill="chocolate2", colour="black") +
  labs(x="Bigram", y="Frequency")+
  theme_classic()+
  theme(axis.text.x=element_text(angle=45, hjust=1))

#### CUMMULATIVE LINES

s10episode17char<- s10episode17

s10episode17char$linenum<-1:length(s10episode17$Line)
s10episode17char$one<-rep(1, length(s10episode17$Line))

### Rachel
s10rachel17<-s10episode17char%>%
  filter(Character=="Rachel")%>%
  select(-Line)

s10rachel17$count<-cumsum(s10rachel17$one)

### Monica
s10monica17<-s10episode17char%>%
  filter(Character=="Monica")%>%
  select(-Line)

s10monica17$count<-cumsum(s10monica17$one)

### Phoebe
s10phoebe17<-s10episode17char%>%
  filter(Character=="Phoebe")%>%
  select(-Line)

s10phoebe17$count<-cumsum(s10phoebe17$one)


### Ross
s10ross17<-s10episode17char%>%
  filter(Character=="Ross")%>%
  select(-Line)

s10ross17$count<-cumsum(s10ross17$one)

### Chandler
s10chandler17<-s10episode1char%>%
  filter(Character=="Chandler")%>%
  select(-Line)

s10chandler17$count<-cumsum(s10chandler17$one)

### Joey
s10joey17<-s10episode17char%>%
  filter(Character=="Joey")%>%
  select(-Line)

s10joey17$count<-cumsum(s10joey17$one)

###### RBIND

s10timeline17<-rbind(s10rachel17, s10monica17, s10phoebe17,
                s10ross17, s10chandler17, s10joey17)

ggplot(s10timeline17, aes(x=linenum, y=count, color=Character))+
  geom_line()

All of season 10, the final season of Friends

# all episodes dialogues 
s10epset <- rbind(s10episode1, s10episode2, s10episode3, s10episode4, s10episode5, s10episode6, 
                  s10episode7, s10episode8, s10episode9, s10episode10, s10episode11, s10episode12, 
                  s10episode13, s10episode14, s10episode15, s10episode16, s10episode17)

# How many dialogues?
length(s10epset$Line)

## [1] 5566

# How many characters?
length(levels(as.factor(s10epset$Character)))

## [1] 139

# Top 20 characters with more dialogues 
top.s10epset.chars <- as.data.frame(sort(table(s10epset$Character), decreasing=TRUE))[1:20,]
top.s10epset.chars<- top.s10epset.chars%>%
  filter(!(str_detect(Var1, "\\[")))

# Visualization 
ggplot(data=top.s10epset.chars, aes(x=Var1, y=Freq)) +
  geom_bar(stat="identity", fill="#56B4E9", colour="black") +
  theme(axis.text.x=element_text(angle=45, hjust=1)) +
  labs(x="Character", y="Number of lines")

# Most frequent bigrams
s10epset.bigrams <- frequentBigrams(s10epset$Line)[1:20,]
ggplot(data=s10epset.bigrams, aes(x=reorder(word, -freq), y=freq)) +  
  geom_bar(stat="identity", fill="chocolate2", colour="black") +
  theme(axis.text.x=element_text(angle=45, hjust=1)) +
  labs(x="Bigram", y="Frequency")

# Transform the text to a tidy data structure with one token per row
s10ftokens <- s10epset %>%  
  mutate(line=as.character(s10epset$Line)) %>%
  unnest_tokens(word, line)

# Positive and negative words - bing
s10ftokens %>%
  inner_join(get_sentiments("bing")) %>%
  count(word, sentiment, sort=TRUE) %>%
  acast(word ~ sentiment, value.var="n", fill=0) %>%
  comparison.cloud(colors=c("#F8766D", "#00BFC4"), max.words=100)

## Joining, by = "word"

# Sentiments and frequency associated with each word - nrc
s10fsentiments <- s10ftokens %>% 
  inner_join(nrc, "word") %>%
  count(word, sentiment, sort=TRUE) 

# Frequency of each sentiment
ggplot(data=s10fsentiments, aes(x=reorder(sentiment, -n, sum), y=n)) + 
  geom_bar(stat="identity", aes(fill=sentiment), show.legend=FALSE) +
  labs(x="Sentiment", y="Frequency")+
  theme(axis.text.x = element_text(angle=45, hjust=1))

# Top 10 terms for each sentiment
s10fsentiments %>%
  group_by(sentiment) %>%
  arrange(desc(n)) %>%
  slice(1:10) %>%
  ggplot(aes(x=reorder(word, n), y=n)) +
  geom_col(aes(fill=sentiment), show.legend=FALSE) +
  facet_wrap(~sentiment, scales="free_y") +
  labs(y="Frequency", x="Terms") +
  coord_flip() 

# Sentiment analysis for the main characters
s10ftokens %>%
  filter(Character %in% c("Monica","Rachel","Phoebe","Ross","Chandler",
                          "Joey")) %>%
  inner_join(nrc, "word") %>%
  count(Character, sentiment, sort=TRUE) %>%
  ggplot(aes(x=sentiment, y=n)) +
  geom_col(aes(fill=sentiment), show.legend=FALSE) +
  facet_wrap(~Character, scales="free_x") +
  labs(x="Sentiment", y="Frequency") +
  coord_flip() 

# Stopwords
mystopwords <- tibble(word=c(stopwords("english"), 
                                 c("thats","weve","hes","theres","ive","im",
                                   "will","can","cant","dont","youve","us",
                                   "youre","youll","theyre","whats","didnt")))

# Tokens without stopwords
s10top.chars.ftokens <- s10epset %>%
  mutate(line=as.character(s10epset$Line)) %>%
  filter(Character %in% c("Monica","Rachel","Phoebe","Ross","Chandler",
                          "Joey")) %>%
  unnest_tokens(word, line) %>%
  anti_join(mystopwords, by="word")

# Most frequent words for each character
s10top.chars.ftokens %>%
  count(Character, word) %>%
  group_by(Character) %>% 
  arrange(desc(n)) %>%
  slice(1:10) %>%
  ungroup() %>%
  mutate(word2=factor(paste(word, Character, sep="__"), 
                       levels=rev(paste(word, Character, sep="__"))))%>%
  ggplot(aes(x=word2, y=n)) +
  geom_col(aes(fill=Character), show.legend=FALSE) +
  facet_wrap(~Character, scales="free_y") +
  labs(x="Sentiment", y="Frequency") +
  scale_x_discrete(labels=function(x) gsub("__.+$", "", x)) +
  coord_flip() 

# Most relevant words for each character
s10top.chars.ftokens %>%
  count(Character, word) %>%
  bind_tf_idf(word, Character, n) %>%
  group_by(Character) %>% 
  arrange(desc(tf_idf)) %>%
  slice(1:10) %>%
  ungroup() %>%
  mutate(word2=factor(paste(word, Character, sep="__"), 
                       levels=rev(paste(word, Character, sep="__"))))%>%
  ggplot(aes(x=word2, y=tf_idf)) +
  geom_col(aes(fill=Character), show.legend=FALSE) +
  facet_wrap(~Character, scales="free_y") +
  theme(axis.text.x=element_text(angle=45, hjust=1)) +
  labs(y="tf–idf", x="Sentiment") +
  scale_x_discrete(labels=function(x) gsub("__.+$", "", x)) +
  coord_flip() 

Niko’s messing around

#season 1 
girls<- epset%>%
  filter(Character %in% c("Monica","Rachel","Phoebe"))

#how many lines for lead girls in s1?
length(girls$Line)

## [1] 2359

boys<- epset%>%
  filter(Character %in% c("Joey", "Chandler", "Ross"))

#how many lines for lead boys in s1?
length(boys$Line)

## [1] 2410

#girls most frequent bigrams
girls.bigrams <- frequentBigrams(girls$Line)[1:20,]
ggplot(data=girls.bigrams, aes(x=reorder(word, -freq), y=freq)) +  
  geom_bar(stat="identity", fill="chocolate2", colour="black") +
  theme(axis.text.x=element_text(angle=45, hjust=1)) +
  labs(x="Bigram", y="Frequency")

#boys most freq bigrams
boys.bigrams <- frequentBigrams(boys$Line)[1:20,]
ggplot(data=boys.bigrams, aes(x=reorder(word, -freq), y=freq)) +  
  geom_bar(stat="identity", fill="chocolate2", colour="black") +
  theme(axis.text.x=element_text(angle=45, hjust=1)) +
  labs(x="Bigram", y="Frequency")

#girls positive/negative word cloud
girlstokens <- girls %>%  
  mutate(line=as.character(girls$Line)) %>%
  unnest_tokens(word, line)

girlstokens %>%
  inner_join(get_sentiments("bing")) %>%
  count(word, sentiment, sort=TRUE) %>%
  acast(word ~ sentiment, value.var="n", fill=0) %>%
  comparison.cloud(colors=c("#F8766D", "#00BFC4"), max.words=100)

## Joining, by = "word"

# boys positive/negative word cloud
boystokens <- boys %>%  
  mutate(line=as.character(boys$Line)) %>%
  unnest_tokens(word, line)

boystokens %>%
  inner_join(get_sentiments("bing")) %>%
  count(word, sentiment, sort=TRUE) %>%
  acast(word ~ sentiment, value.var="n", fill=0) %>%
  comparison.cloud(colors=c("#F8766D", "#00BFC4"), max.words=100)

## Joining, by = "word"

# girls sentiments frequency
girlssentiments <- girlstokens %>% 
  inner_join(nrc, "word") %>%
  count(word, sentiment, sort=TRUE) 

ggplot(data=girlssentiments, aes(x=reorder(sentiment, -n, sum), y=n)) + 
  geom_bar(stat="identity", aes(fill=sentiment), show.legend=FALSE) +
  labs(x="Sentiment", y="Frequency")+
  theme(axis.text.x = element_text(angle=45, hjust=1))

#boys sentiments frequency 
boyssentiments <- boystokens %>% 
  inner_join(nrc, "word") %>%
  count(word, sentiment, sort=TRUE) 

ggplot(data=boyssentiments, aes(x=reorder(sentiment, -n, sum), y=n)) + 
  geom_bar(stat="identity", aes(fill=sentiment), show.legend=FALSE) +
  labs(x="Sentiment", y="Frequency")+
  theme(axis.text.x = element_text(angle=45, hjust=1))

#girls top words associated w each sentiment
girlssentiments %>%
  group_by(sentiment) %>%
  arrange(desc(n)) %>%
  slice(1:10) %>%
  ggplot(aes(x=reorder(word, n), y=n)) +
  geom_col(aes(fill=sentiment), show.legend=FALSE) +
  facet_wrap(~sentiment, scales="free_y") +
  labs(y="Frequency", x="Terms") +
  coord_flip() 

#boys top words associated w each sentiment
boyssentiments %>%
  group_by(sentiment) %>%
  arrange(desc(n)) %>%
  slice(1:10) %>%
  ggplot(aes(x=reorder(word, n), y=n)) +
  geom_col(aes(fill=sentiment), show.legend=FALSE) +
  facet_wrap(~sentiment, scales="free_y") +
  labs(y="Frequency", x="Terms") +
  coord_flip() 

#season 10 
s10girls<- s10epset%>%
  filter(Character %in% c("Monica","Rachel","Phoebe"))

# how many lines for lead girls in s10?
length(s10girls$Line) 

## [1] 2157

s10boys<- s10epset%>%
  filter(Character %in% c("Joey", "Chandler", "Ross"))

# how many lines for lead boys in s10?
length(s10boys$Line)

## [1] 2295

#girls most frequent bigrams
s10girls.bigrams <- frequentBigrams(s10girls$Line)[1:20,]
ggplot(data=s10girls.bigrams, aes(x=reorder(word, -freq), y=freq)) +  
  geom_bar(stat="identity", fill="chocolate2", colour="black") +
  theme(axis.text.x=element_text(angle=45, hjust=1)) +
  labs(x="Bigram", y="Frequency")

#boys most freq bigrams
s10boys.bigrams <- frequentBigrams(s10boys$Line)[1:20,]
ggplot(data=s10boys.bigrams, aes(x=reorder(word, -freq), y=freq)) +  
  geom_bar(stat="identity", fill="chocolate2", colour="black") +
  theme(axis.text.x=element_text(angle=45, hjust=1)) +
  labs(x="Bigram", y="Frequency")

#girls positive/negative word cloud
s10girlstokens <- s10girls %>%  
  mutate(line=as.character(s10girls$Line)) %>%
  unnest_tokens(word, line)

s10girlstokens %>%
  inner_join(get_sentiments("bing")) %>%
  count(word, sentiment, sort=TRUE) %>%
  acast(word ~ sentiment, value.var="n", fill=0) %>%
  comparison.cloud(colors=c("#F8766D", "#00BFC4"), max.words=100)

## Joining, by = "word"

# boys positive/negative word cloud
s10boystokens <- s10boys %>%  
  mutate(line=as.character(s10boys$Line)) %>%
  unnest_tokens(word, line)

s10boystokens %>%
  inner_join(get_sentiments("bing")) %>%
  count(word, sentiment, sort=TRUE) %>%
  acast(word ~ sentiment, value.var="n", fill=0) %>%
  comparison.cloud(colors=c("#F8766D", "#00BFC4"), max.words=100)

## Joining, by = "word"

# girls sentiments frequency
s10girlssentiments <- s10girlstokens %>% 
  inner_join(nrc, "word") %>%
  count(word, sentiment, sort=TRUE) 

ggplot(data=s10girlssentiments, aes(x=reorder(sentiment, -n, sum), y=n)) + 
  geom_bar(stat="identity", aes(fill=sentiment), show.legend=FALSE) +
  labs(x="Sentiment", y="Frequency")+
  theme(axis.text.x = element_text(angle=45, hjust=1))

#boys sentiments frequency 
s10boyssentiments <- s10boystokens %>% 
  inner_join(nrc, "word") %>%
  count(word, sentiment, sort=TRUE) 

ggplot(data=s10boyssentiments, aes(x=reorder(sentiment, -n, sum), y=n)) + 
  geom_bar(stat="identity", aes(fill=sentiment), show.legend=FALSE) +
  labs(x="Sentiment", y="Frequency")+
  theme(axis.text.x = element_text(angle=45, hjust=1))

#girls top words associated w each sentiment
s10girlssentiments %>%
  group_by(sentiment) %>%
  arrange(desc(n)) %>%
  slice(1:10) %>%
  ggplot(aes(x=reorder(word, n), y=n)) +
  geom_col(aes(fill=sentiment), show.legend=FALSE) +
  facet_wrap(~sentiment, scales="free_y") +
  labs(y="Frequency", x="Terms") +
  coord_flip() 

#boys top words associated w each sentiment
s10boyssentiments %>%
  group_by(sentiment) %>%
  arrange(desc(n)) %>%
  slice(1:10) %>%
  ggplot(aes(x=reorder(word, n), y=n)) +
  geom_col(aes(fill=sentiment), show.legend=FALSE) +
  facet_wrap(~sentiment, scales="free_y") +
  labs(y="Frequency", x="Terms") +
  coord_flip() 

Gendered bigrams???

#epset.mascbigrams <- frequentBigrams(s10epset$Line)%>% filter(str_detect(word, "boy|Boy|boys|Boys|guy|Guy|guys|Guys|man|Man|men|Men|dude|Dude|dude|Dudes|fella|Fella"), !str_detect(word, 'apartment'))
#ggplot(data=s10epset.bigrams, aes(x=reorder(word, -freq), y=freq)) +  
#  geom_bar(stat="identity", fill="chocolate2", colour="black") +
#  theme(axis.text.x=element_text(angle=45, hjust=1)) +
#  labs(x="Bigram", y="Frequency")

#season 1 bigrams for masculine nouns
mascbigrams<- epset%>%
  unnest_tokens(bigram, Line, token = "ngrams", n = 2)%>%
  separate(bigram, c("word1", "word2"), sep = " ")%>%
  filter(!word1 %in% stop_words$word) %>%
  filter(!word2 %in% stop_words$word)%>%
  filter(word2 %in% c("boy","Boy","boys","Boys","man","Man","men","Men","guy","Guy","guys","Guys"))%>%
  unite(bigram, word1, word2, sep = " ")%>%
  count(bigram, sort = TRUE)
head(mascbigrams)  

##      bigram n
## 1 naked guy 7
## 2  nice guy 6
## 3  wine guy 5
## 4  coma guy 3
## 5  hey guys 3
## 6 kinda guy 3

#season 1 bigrams for feminine nouns
fembigrams<- epset%>%
  unnest_tokens(bigram, Line, token = "ngrams", n = 2)%>%
  separate(bigram, c("word1", "word2"), sep = " ")%>%
  filter(!word1 %in% stop_words$word) %>%
  filter(!word2 %in% stop_words$word)%>%
  filter(word2 %in% c("girl","Girl","girls","Girls","woman","Woman","women","Women","lady","Lady","ladies","Ladies"))%>%
  unite(bigram, word1, word2, sep = " ")%>%
  count(bigram, sort = TRUE)
head(fembigrams)

##            bigram n
## 1 beautiful woman 5
## 2        bug lady 2
## 3     likes women 2
## 4      weird girl 2
## 5  apartment girl 1
## 6 beautiful women 1

# SEASON 10 bigrams for masc
s10mascbigrams<- s10epset%>%
  unnest_tokens(bigram, Line, token = "ngrams", n = 2)%>%
  separate(bigram, c("word1", "word2"), sep = " ")%>%
  filter(!word1 %in% stop_words$word) %>%
  filter(!word2 %in% stop_words$word)%>%
  filter(word2 %in% c("boy","Boy","boys","Boys","man","Man","men","Men","guy","Guy","guys","Guys"))%>%
  unite(bigram, word1, word2, sep = " ")%>%
  count(bigram, sort = TRUE)
head(s10mascbigrams)  

##        bigram  n
## 1    hey guys 10
## 2    cool guy  2
## 3    aged guy  1
## 4  agency guy  1
## 5 amazing guy  1
## 6     bad boy  1

#season 10 bigrams for fem
s10fembigrams<- s10epset%>%
  unnest_tokens(bigram, Line, token = "ngrams", n = 2)%>%
  separate(bigram, c("word1", "word2"), sep = " ")%>%
  filter(!word1 %in% stop_words$word) %>%
  filter(!word2 %in% stop_words$word)%>%
  filter(word2 %in% c("girl","Girl","girls","Girls","woman","Woman","women","Women","lady","Lady","ladies","Ladies"))%>%
  unite(bigram, word1, word2, sep = " ")%>%
  count(bigram, sort = TRUE)
head(s10fembigrams)

##            bigram n
## 1   adoption lady 3
## 2 beautiful woman 2
## 3    white ladies 2
## 4   birthday girl 1
## 5    blonde woman 1
## 6       body girl 1

#VISUALIZE
# season 1
topmascbigrams <- mascbigrams[1:20,]
ggplot(data=topmascbigrams, aes(x=reorder(bigram,n), y=n)) +  
  geom_bar(stat="identity", fill="chocolate2", colour="black") +
  theme(axis.text.x=element_text(angle=45, hjust=1)) +
  labs(x="Bigram", y="Frequency")+
  coord_flip()

topfembigrams <- fembigrams[1:20,]
ggplot(data=topfembigrams, aes(x=reorder(bigram,n), y=n)) +  
  geom_bar(stat="identity", fill="chocolate2", colour="black") +
  theme(axis.text.x=element_text(angle=45, hjust=1)) +
  labs(x="Bigram", y="Frequency")+
  coord_flip()

# season 10
s10topmascbigrams <- s10mascbigrams[1:20,]
ggplot(data=s10topmascbigrams, aes(x=reorder(bigram,n), y=n)) +  
  geom_bar(stat="identity", fill="chocolate2", colour="black") +
  theme(axis.text.x=element_text(angle=45, hjust=1)) +
  labs(x="Bigram", y="Frequency")+
  coord_flip()

s10topfembigrams <- s10fembigrams[1:20,]%>%
  filter(!is.na(bigram))
ggplot(data=s10topfembigrams, aes(x=reorder(bigram,n), y=n)) +  
  geom_bar(stat="identity", fill="chocolate2", colour="black") +
  theme(axis.text.x=element_text(angle=45, hjust=1)) +
  labs(x="Bigram", y="Frequency")+
  coord_flip()