Description Usage Arguments Value See Also
VA cleaning:
tidyNA: Replacing empty placeholders (".","", "(any number of empty space)", "NULL", "NA", "N/A" , "-") - any cases - with NA
Simplifying the notation for qualitative VA notation (NPL becomes NLP, PL becomes LP)
Removing non-Snellen character strings
1 2 3 |
x |
Vector with VA entries |
quali |
strings for qualitative visual acuity entries |
message |
message for replaced NA values |
character vector
Other VA cleaner:
va()
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