Dear R-Helpers,


I have the following data set(y):

  Test_Result   #_Test
    t                 10
    f                 14
    f                 25
    f                 NA
    f                 40
    t                45
    t                44
 <NA>           47
    t                NA


I want to replace the NA values with the following method:
- for the numeric variable, replace NA with median
- for character variable , replace NA with the most frequent level

If i use x<-na.roughfix(y) the NA values are correctly replaced.
But if i x<-na.roughfix(y$Test_Result) i obtain the following error:

roughfix can only deal with numeric data.

How can i solve this proble that i met every time i want to replace only the
NA values of a column (type character)?

Thank you in advance.


Sergio Della Franca

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