How to use add_column(newCol = str_extract(oldColumn, "pattern", .after = "oldColum" ) inside Exploratory?

[Carmen_Sandoval]

add_column(MIPSGroup = str_extract(.$Dil_Plate_Name, "[:alnum:]+_([[:alnum:]&&[^P]]+(_CL)?)?|(KORgex)), .after="Dil_Plate_Name")

I cannot seem to get the add_column command to work inside Exploratory, although this works in R:

mips.group <- str_extract(mips.manifest$`Dil plate name`, 
                                         "[:alnum:]+_([[:alnum:]&&[^P]]+(_CL)?)?|(KORgex)")

mips.manifest %<>%
  add_column(MIPSGroup=mips.group, .after="Dil_Plate_Name")

What am I doing wrong? Thanks!

[Kan_Nishida]

You can do it with Mutate command, which you can start from

Or,