search for: p_geo_no3

Displaying 1 result from an estimated 1 matches for "p_geo_no3".

2008 Jun 24
2
subscripting in data frames with NA
..." "2" NA ... $ position_geo : chr "3" "0" "3" "3" ... $ institution : Factor w/ 3 levels "digesa","mem",..: 3 3 3 3 3 3 3 3 3 3 ... $ p_desc_no3 : chr "2" "2" "2" NA ... $ p_geo_no3 : chr "3" "0" "3" "3" ... I try to subscript but get: > b3[b3[,3]=="3",5] <-NA Error in `[<-.data.frame`(`*tmp*`, b3[, 3] == "3", 5, value = NA) : missing values are not allowed in subscripted assignments of data fram...