Description Usage Arguments Value Author(s)
Extract and return a data frame with the columns that include only numeric values
| 1 | 
| pattern | Chararcter string vector containing a regular expression to be matched in the given character vector | 
| replacement | A character vector of equal length with the pattern to be replaced. | 
| x | A character vector or an object where the matches are | 
| ... | other parameters to pass | 
This function returns a character vector with the replacements.
Kleanthis Koupidis
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