Argument na.rm gives a simple way of removing missing values from data if they are coded as NA . In base R its standard default value is ... ... <看更多>
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Argument na.rm gives a simple way of removing missing values from data if they are coded as NA . In base R its standard default value is ... ... <看更多>
... <看更多>
2019年10月16日 — 一些函式計算時擁有na.rm=TRUE，可以在計算以前移除缺失值並使用剩餘值進行計算 data2[is.na(data2$income),"income"] = mean(data2$income,na.rm ... ... <看更多>
UseMethod('sum.rm.na'). sum.rm.na.numeric <- function(x){. # sums numeric vector, treating NA's as 0 unless all NA the NA is returned. ... <看更多>
The only benefit of na.exclude over na.omit is that the former will retain the original number of rows in the data. ... <看更多>