錯誤：對象 'X' 未找到

Question

，我有以下數據集：

> str(e.2015.1990) 
'data.frame': 4813807 obs. of 42 variables: 
$ GAME.ID        : Factor w/ 60464 levels "ANA201504100",..: 1 1 1 1 1 1 1 1 1 1 ... 
$ INNING        : num 1 1 1 1 1 1 1 1 1 2 ... 
$ BATTING.TEAM       : Factor w/ 2 levels "0","1": 1 1 1 1 1 1 2 2 2 1 ... 
$ OUTS         : int 0 1 2 2 2 2 0 1 2 0 ... 
$ BATTER        : Factor w/ 5107 levels "abrej003","ackld001",..: 73 167 33 120 163 100 34 256 200 209 ... 
$ BATTER.HAND       : Factor w/ 2 levels "L","R": 2 1 2 1 2 1 1 2 2 2 ... 
$ RES.BATTER       : Factor w/ 5107 levels "abrej003","ackld001",..: 73 167 33 120 163 100 34 256 200 209 ... 
$ RES.BATTER.HAND      : Factor w/ 2 levels "L","R": 2 1 2 1 2 1 1 2 2 2 ... 
$ PITCHER        : Factor w/ 3481 levels "abadf001","albem001",..: 187 187 187 187 187 187 204 204 204 187 ... 
$ PITCHER.HAND       : Factor w/ 2 levels "L","R": 1 1 1 1 1 1 1 1 1 1 ... 
$ RES.PITCHER       : Factor w/ 3481 levels "abadf001","albem001",..: 187 187 187 187 187 187 204 204 204 187 ... 
$ RES.PITCHER.HAND      : Factor w/ 2 levels "L","R": 1 1 1 1 1 1 1 1 1 1 ... 
$ FIRST.RUNNER       : Factor w/ 4369 levels "","abrej003",..: 1 1 1 1 104 140 1 1 1 1 ... 
$ SECOND.RUNNER      : Factor w/ 4048 levels "","abrej003",..: 1 1 1 26 1 90 1 1 1 1 ... 
$ THIRD.RUNNER       : Factor w/ 3729 levels "","ackld001",..: 1 1 1 1 1 1 1 1 1 1 ... 
$ EVENT.TEXT       : chr "63/G" "6/P" "D8/L+" "S9/G.2-H" ... 
$ EVENT.TYPE       : num 1 1 19 18 18 1 1 1 1 1 ... 
$ AB.FLAG        : logi TRUE TRUE TRUE TRUE TRUE TRUE ... 
$ HIT.VALUE       : int 1 1 3 2 2 1 1 1 1 1 ... 
$ SH.FLAG        : logi FALSE FALSE FALSE FALSE FALSE FALSE ... 
$ SF.FLAG        : logi FALSE FALSE FALSE FALSE FALSE FALSE ... 
$ DOUBLE.PLAY.FLAG      : logi FALSE FALSE FALSE FALSE FALSE FALSE ... 
$ TRIPLE.PLAY.FLAG      : logi FALSE FALSE FALSE FALSE FALSE FALSE ... 
$ RBI.ON.PLAY       : num 0 0 0 1 0 0 0 0 0 0 ... 
$ BATTED.BALL.TYPE      : Factor w/ 5 levels "","F","G","L",..: 3 5 4 3 4 5 3 3 5 4 ... 
$ BATTER.DEST       : int 0 0 2 1 1 0 0 0 0 0 ... 
$ RUNNER.ON.1ST.DEST     : int 0 0 0 0 2 1 0 0 0 0 ... 
$ RUNNER.ON.2ND.DEST     : int 0 0 0 4 0 2 0 0 0 0 ... 
$ RUNNER.ON.3RD.DEST     : int 0 0 0 0 0 0 0 0 0 0 ... 
$ SB.FOR.RUNNER.ON.1ST.FLAG   : logi FALSE FALSE FALSE FALSE FALSE FALSE ... 
$ SB.FOR.RUNNER.ON.2ND.FLAG   : logi FALSE FALSE FALSE FALSE FALSE FALSE ... 
$ SB.FOR.RUNNER.ON.3RD.FLAG   : logi FALSE FALSE FALSE FALSE FALSE FALSE ... 
$ CS.FOR.RUNNER.ON.1ST.FLAG   : logi FALSE FALSE FALSE FALSE FALSE FALSE ... 
$ CS.FOR.RUNNER.ON.2ND.FLAG   : logi FALSE FALSE FALSE FALSE FALSE FALSE ... 
$ CS.FOR.RUNNER.ON.3RD.FLAG   : logi FALSE FALSE FALSE FALSE FALSE FALSE ... 
$ PO.FOR.RUNNER.ON.1ST.FLAG   : logi FALSE FALSE FALSE FALSE FALSE FALSE ... 
$ PO.FOR.RUNNER.ON.2ND.FLAG   : logi FALSE FALSE FALSE FALSE FALSE FALSE ... 
$ PO.FOR.RUNNER.ON.3RD.FLAG   : logi FALSE FALSE FALSE FALSE FALSE FALSE ... 
$ RESPONSIBLE.PITCHER.FOR.RUNNER.ON.1ST: Factor w/ 3433 levels "","albua001",..: 1 1 1 1 161 161 1 1 1 1 ... 
$ RESPONSIBLE.PITCHER.FOR.RUNNER.ON.2ND: Factor w/ 3408 levels "","abadf001",..: 1 1 1 133 1 133 1 1 1 1 ... 
$ RESPONSIBLE.PITCHER.FOR.RUNNER.ON.3RD: Factor w/ 3337 levels "","abadf001",..: 1 1 1 1 1 1 1 1 1 1 ... 
$ EVENT.NUM       : Factor w/ 177 levels "1","10","100",..: 1 90 101 112 123 134 145 156 167 2 ... 

我能夠成功，創建下列數據集：

p.hit = aggregate(x = list(HIT = e.2015.1990$HIT.VALUE), by = list(GAME.ID = e.2015.1990$GAME.ID, PLAYER.ID = e.2015.1990$BATTER), FUN = function(x) sum(x > 1)) 
p.single = aggregate(x = list(SINGLE = e.2015.1990$HIT.VALUE), by = list(GAME.ID = e.2015.1990$GAME.ID, PLAYER.ID = e.2015.1990$BATTER), FUN = function(x) sum(x == 2)) 
p.double = aggregate(x = list(DOUBLE = e.2015.1990$HIT.VALUE), by = list(GAME.ID = e.2015.1990$GAME.ID, PLAYER.ID = e.2015.1990$BATTER), FUN = function(x) sum(x == 3)) 
p.triple = aggregate(x = list(TRIPLE = e.2015.1990$HIT.VALUE), by = list(GAME.ID = e.2015.1990$GAME.ID, PLAYER.ID = e.2015.1990$BATTER), FUN = function(x) sum(x == 4)) 
p.home.run = aggregate(x = list(HOME.RUN = e.2015.1990$HIT.VALUE), by = list(GAME.ID = e.2015.1990$GAME.ID, PLAYER.ID = e.2015.1990$BATTER), FUN = function(x) sum(x == 5)) 
p.at.bat = aggregate(x = list(AT.BAT = e.2015.1990$AB.FLAG), by = list(GAME.ID = e.2015.1990$GAME.ID, PLAYER.ID = e.2015.1990$BATTER), FUN = function(x) sum(x == "TRUE")) 
p.rbi = aggregate(x = list(RBI = e.2015.1990$RBI.ON.PLAY), by = list(GAME.ID = e.2015.1990$GAME.ID, PLAYER.ID = e.2015.1990$BATTER), FUN = function(x) sum(x > 0)) 
p.sf = aggregate(x = list(SACRIFICE.FLY = e.2015.1990$SF.FLAG), by = list(GAME.ID = e.2015.1990$GAME.ID, PLAYER.ID = e.2015.1990$BATTER), FUN = function(x) sum(x == "TRUE")) 
p.hbp = aggregate(x = list(HIT.BY.PITCH = e.2015.1990$EVENT.TYPE), by = list(GAME.ID = e.2015.1990$GAME.ID, PLAYER.ID = e.2015.1990$BATTER), FUN = function(x) sum(x == 16)) 
p.ibb = aggregate(x = list(INTENTIONAL.WALK = e.2015.1990$EVENT.TYPE), by = list(GAME.ID = e.2015.1990$GAME.ID, PLAYER.ID = e.2015.1990$BATTER), FUN = function(x) sum(x == 15)) 

然而，當我，同樣的，嘗試創建以下數據集：

p.sh = aggregate(x = list(SACRIFICE.HIT = e.2015.1990$SH.FLAG), by = list(GAME.ID = e.2015.1990$GAME.ID, PLAYER.ID = e.2015.1990$BATTER), FUN = function(x) sum(X == "TRUE")) 
p.so = aggregate(x = list(STRIKE.OUT = e.2015.1990$EVENT.TYPE), by = list(GAME.ID = e.2015.1990$GAME.ID, PLAYER.ID = e.2015.1990$RES.PITCHER), FUN = function(x) sum(X == 3)) 
p.ha = aggregate(x = list(HITS.ALLOWED = e.2015.1990$EVENT.TYPE), by = list(GAME.ID = e.2015.1990$GAME.ID, PLAYER.ID = e.2015.1990$RES.PITCHER), FUN = function(x) sum(X > 1)) 
p.hb = aggregate(x = list(HIT.BATSMAN = e.2015.1990$EVENT.TYPE), by = list(GAME.ID = e.2015.1990$GAME.ID, PLAYER.ID = e.2015.1990$RES.PITCHER), FUN = function(x) sum(X == 16)) 

我得到同樣的錯誤消息：

> p.sh = aggregate(x = list(SACRIFICE.HIT = e.2015.1990$SH.FLAG), by = list(GAME.ID = e.2015.1990$GAME.ID, PLAYER.ID = e.2015.1990$BATTER), FUN = function(x) sum(X == "TRUE")) 
Error in FUN(X[[i]], ...) : object 'X' not found 
> p.so = aggregate(x = list(STRIKE.OUT = e.2015.1990$EVENT.TYPE), by = list(GAME.ID = e.2015.1990$GAME.ID, PLAYER.ID = e.2015.1990$RES.PITCHER), FUN = function(x) sum(X == 3)) 
Error in FUN(X[[i]], ...) : object 'X' not found 
> p.ha = aggregate(x = list(HITS.ALLOWED = e.2015.1990$EVENT.TYPE), by = list(GAME.ID = e.2015.1990$GAME.ID, PLAYER.ID = e.2015.1990$RES.PITCHER), FUN = function(x) sum(X > 1)) 
Error in FUN(X[[i]], ...) : object 'X' not found 
> p.hb = aggregate(x = list(HIT.BATSMAN = e.2015.1990$EVENT.TYPE), by = list(GAME.ID = e.2015.1990$GAME.ID, PLAYER.ID = e.2015.1990$RES.PITCHER), FUN = function(x) sum(X == 16)) 
Error in FUN(X[[i]], ...) : object 'X' not found 

有什麼區別？這裏發生了什麼？而且，我該如何解決它？

在我發現的類似問題中，似乎這個錯誤與某種類型的身份違規有關，其中變量指的是它本身。但是，這不是這種情況。

謝謝你的幫助！

Answer 1

它似乎只是一個案件的問題。

在出現錯誤的代碼中，您在sum函數中將x替換爲X.

請嘗試以下方法：

p.sh = aggregate(x = list(SACRIFICE.HIT = e.2015.1990$SH.FLAG), by = list(GAME.ID = e.2015.1990$GAME.ID, PLAYER.ID = e.2015.1990$BATTER), FUN = function(x) sum(x == "TRUE")) 
p.so = aggregate(x = list(STRIKE.OUT = e.2015.1990$EVENT.TYPE), by = list(GAME.ID = e.2015.1990$GAME.ID, PLAYER.ID = e.2015.1990$RES.PITCHER), FUN = function(x) sum(x == 3)) 
p.ha = aggregate(x = list(HITS.ALLOWED = e.2015.1990$EVENT.TYPE), by = list(GAME.ID = e.2015.1990$GAME.ID, PLAYER.ID = e.2015.1990$RES.PITCHER), FUN = function(x) sum(x > 1)) 
p.hb = aggregate(x = list(HIT.BATSMAN = e.2015.1990$EVENT.TYPE), by = list(GAME.ID = e.2015.1990$GAME.ID, PLAYER.ID = e.2015.1990$RES.PITCHER), FUN = function(x) sum(x == 16))