/TypeScript/Twitter analysis in R clean tweets

Twitter analysis in R clean tweets

clean_tweet4 <- str_replace_all(clean_tweet3, "https://t.co/[a-z,A-Z,0-9]*","")
clean_tweet5 <- str_replace_all(clean_tweet4, "http://t.co/[a-z,A-Z,0-9]*","")

Source: stackoverflow.com

Twitter analysis in R clean tweets

  clean_tweet = gsub("&", "", unclean_tweet)
  clean_tweet = gsub("(RT|via)((?:\\b\\W*@\\w+)+)", "", clean_tweet)
  clean_tweet = gsub("@\\w+", "", clean_tweet)
  clean_tweet = gsub("[[:punct:]]", "", clean_tweet)
  clean_tweet = gsub("[[:digit:]]", "", clean_tweet)
  clean_tweet = gsub("http\\w+", "", clean_tweet)
  clean_tweet = gsub("[ \t]{2,}", "", clean_tweet)
  clean_tweet = gsub("^\\s+|\\s+$", "", clean_tweet)

Source: stackoverflow.com

Twitter analysis in R clean tweets

df <- tm_map(df, tolower)

Source: stackoverflow.com

Twitter analysis in R clean tweets

 #get rid of unnecessary spaces
clean_tweet <- str_replace_all(clean_tweet," "," ")
# Get rid of URLs
clean_tweet <- str_replace_all(clean_tweet, "http://t.co/[a-z,A-Z,0-9]*{8}","")
# Take out retweet header, there is only one
clean_tweet <- str_replace(clean_tweet,"RT @[a-z,A-Z]*: ","")
# Get rid of hashtags
clean_tweet <- str_replace_all(clean_tweet,"#[a-z,A-Z]*","")
# Get rid of references to other screennames
clean_tweet <- str_replace_all(clean_tweet,"@[a-z,A-Z]*","")

Source: stackoverflow.com

Twitter analysis in R clean tweets

df <- tm_map(df, removeNumbers)

Source: stackoverflow.com

Twitter analysis in R clean tweets

# Get rid of URLs
clean_tweet <- str_replace_all(clean_tweet, "http://t.co/[a-z,A-Z,0-9]*{8}","")

Source: stackoverflow.com

Twitter analysis in R clean tweets

    library(tidyverse)    

    clean_tweets <- function(x) {
                x %>%
                        str_remove_all(" ?(f|ht)(tp)(s?)(://)(.*)[.|/](.*)") %>%
                        str_replace_all("&", "and") %>%
                        str_remove_all("[[:punct:]]") %>%
                        str_remove_all("^RT:? ") %>%
                        str_remove_all("@[[:alnum:]]+") %>%
                        str_remove_all("#[[:alnum:]]+") %>%
                        str_replace_all("\\\n", " ") %>%
                        str_to_lower() %>%
                        str_trim("both")
        }

    tweets %>% clean_tweets

Source: stackoverflow.com

Twitter analysis in R clean tweets

Error in stri_replace_all_regex(string, pattern, fix_replacement(replacement),  : 
 Syntax error in regexp pattern. (U_REGEX_RULE_SYNTAX)

Source: stackoverflow.com

Twitter analysis in R clean tweets

df <- tm_map(df, removePunctuation)

Source: stackoverflow.com

Similar codes

1 vote281 views1 answer
Adonis validator exists
TypeScript
-1 vote293 views2 answers
Hhow to remove elements from java
TypeScript
1 vote277 views1 answer
Serenity.is Entity service async to sync requests
TypeScript
0 vote272 views1 answer
Regex match round brackets contains any characters
TypeScript
1 vote280 views1 answer
Angular host binding class on input
TypeScript
0 vote314 views1 answer
Extract digits with serten lenth from string python
TypeScript
0 vote335 views2 answers
Register service worker
TypeScript
0 vote293 views3 answers
Passing Data between fragments in Android using Interface
TypeScript
2 votes279 views2 answers
React native elements button with icon
TypeScript
0 vote276 views1 answer
How to add id in array javascript
TypeScript