Description Usage Arguments Details Value Author(s) Examples
Test if a string contain any letters
| 1 | containLetters(obj, all=FALSE)
 | 
| obj | String | 
| all | If set to FALSE, return TRUE when any letters appears; if all is set to TRUE, return TRUE only when the string is composed of just letters. | 
Useful when processing/sorting seqnames
Logical value
tengfei
| 1 2 | containLetters("XYZ123")
containLetters("XYZ123", TRUE)
 | 
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