in R, use gsub to remove all punctuation except period

by

You can put back some matches like this:

 sub("([.-])|[[:punct:]]", "\\1", as.matrix(z))
     X..1. X..2.  
[1,] "1"   "6"    
[2,] "2"   "7.235"
[3,] "3"   "8"    
[4,] "4"   "9"    
[5,] "5"   "-10"

Here I am keeping the . and -.

And I guess , the next step is to coerce you result to a numeric matrix, SO here I combine the 2 steps like this:

matrix(as.numeric(sub("([.-])|[[:punct:]]", "\\1", as.matrix(z))),ncol=2)
   [,1]    [,2]
[1,]    1   6.000
[2,]    2   7.235
[3,]    3   8.000
[4,]    4   9.000
[5,]    5 -10.000

More Related Contents:

  1. Replace specific characters within strings
  2. Replace multiple letters with accents with gsub
  3. Replace / translate characters in a string
  4. Remove everything after space in string
  5. gsub() in R is not replacing ‘.’ (dot)
  6. How to remove unicode from string?
  7. Remove all punctuation except apostrophes in R
  8. Replace values greater than zero with 1 in r
  9. How to convert string rule to an expression which has a range in R [closed]
  10. grep using a character vector with multiple patterns
  11. Matching multiple patterns
  12. Replace single backslash in R
  13. Replace all particular values in a data frame
  14. Remove part of a string
  15. Match values in data frame with values in another data frame and replace former with a corresponding pattern from the other data frame
  16. Replace multiple strings in one gsub() or chartr() statement in R?
  17. Finding the indexes of multiple/overlapping matching substrings
  18. Extracting unique numbers from string in R
  19. Replace given value in vector
  20. Use gsub remove all string before first white space in R
  21. remove all line breaks (enter symbols) from the string using R
  22. R grep: is there an AND operator?
  23. grepl for a period “.” in R?
  24. Using get() with replacement functions
  25. Replace a value NA with the value from another column in R
  26. Replace all values in a matrix
  27. Replace empty values with value from other column in a dataframe
  28. How to delete everything after nth delimiter in R?
  29. How to grep a word exactly
  30. replacing values in a column with another column R

Leave a Comment