Check if string contains ONLY NUMBERS or ONLY CHARACTERS (R)

by

More Related Contents:

  1. grep using a character vector with multiple patterns
  2. Selecting data frame rows based on partial string match in a column
  3. Matching multiple patterns
  4. How to use grep()/gsub() to find exact match
  5. Using regex in R to find strings as whole words (but not strings as part of words)
  6. Replace specific characters within strings
  7. Test if characters are in a string
  8. Remove parentheses and text within from strings in R
  9. Replace / translate characters in a string
  10. POSIX character class does not work in base R regex
  11. Remove part of a string
  12. regular expressions in base R: ‘perl=TRUE’ vs. the default (PCRE vs. TRE)
  13. Finding the indexes of multiple/overlapping matching substrings
  14. Extracting unique numbers from string in R
  15. Remove everything after space in string
  16. gsub() in R is not replacing ‘.’ (dot)
  17. Select columns based on string match – dplyr::select
  18. in R, use gsub to remove all punctuation except period
  19. Use grepl to search either of multiple substrings in a text [duplicate]
  20. remove all line breaks (enter symbols) from the string using R
  21. R grep: is there an AND operator?
  22. How to remove unicode from string?
  23. Remove all punctuation except apostrophes in R
  24. grepl for a period “.” in R?
  25. select columns based on multiple strings with dplyr contains()
  26. How to delete everything after nth delimiter in R?
  27. Remove part of a string in dataframe column (R)
  28. “‘\w’ is an unrecognized escape” in grep
  29. How to grep a word exactly
  30. remove text after final period in string

Leave a Comment