我想从数据帧列表中提取的值填充当前数据框中的新列。以下是我的数据的样子（下面的完整输入数据）：
#Data Frame to be filled
> head(games, 5)
Season Div Date HomeTeam AwayTeam FTHG FTAG FTR
23053 1 E0 2000-09-10 Derby Charlton 2 2 D
23054 1 E0 2000-09-11 Tottenham West Ham 1 0 H
23055 1 E0 2000-09-16 Arsenal Coventry 2 1 H
23056 1 E0 2000-09-16 Aston Villa Bradford 2 0 H
23057 1 E0 2000-09-16 Charlton Tottenham 1 0 H
和我的数据框列表，其中应该提取/匹配值：
> head(para, 1)
$`2000-09-10`
$`2000-09-10`$scores
Attack Defense Success
Man United 2.14912729 -1.25946397 3.31882422
Leicester -0.49739636 -0.90719409 0.06857911
Newcastle -0.03265567 -0.42396682 0.46248947
Liverpool 0.90666453 0.32898381 0.12367415
Arsenal 2.06959156 -0.74226622 0.77491185
Leeds -0.49633686 -1.80494633 0.71006855
Everton 0.94810944 0.02319138 0.31128405
Tottenham -0.60791873 -0.94621398 0.37125322
Coventry -0.83692022 0.49515076 -0.94503859
Chelsea 0.49759065 0.26012454 -0.16898841
Man City 0.34567732 1.20600136 -0.88994356
Middlesbrough 0.52869431 1.09634207 0.16495278
Aston Villa -1.54843810 -0.80686850 -0.23383171
Bradford -1.59279590 2.17819215 -1.76900051
Charlton -0.22182631 0.12770046 0.22004781
Ipswich -0.24578699 -0.11587056 -0.57752117
Sunderland -1.22434134 1.92507466 -1.37509016
Derby -0.68685237 -0.01749803 0.07859067
Southampton 0.24417108 0.08377682 -0.32019382
West Ham 0.30164268 -0.70024952 -0.32506796
最终结果将如下所示，其中新列（Home.att，Home.def ...）从“攻击”，“防御”和“成功”列中填充正确的日期（手动填充的第一个游戏）：
> head(result, 5)
Season Div Date HomeTeam AwayTeam FTHG FTAG FTR Home.att Home.def Home.suc Away.att Away.def
23053 1 E0 2000-09-10 Derby Charlton 2 2 D -0.686 -0.0174 0.078 -0.221 0.127
23054 1 E0 2000-09-11 Tottenham West Ham 1 0 H NA NA NA NA NA
23055 1 E0 2000-09-16 Arsenal Coventry 2 1 H NA NA NA NA NA
23056 1 E0 2000-09-16 Aston Villa Bradford 2 0 H NA NA NA NA NA
23057 1 E0 2000-09-16 Charlton Tottenham 1 0 H NA NA NA NA NA
Away.suc
23053 0.220
23054 NA
23055 NA
23056 NA
23057 NA
这是数据：
列表：
> dput(para)
structure(list(`2000-09-10` = structure(list(scores = structure(c(2.14912728720235,
-0.497396360763537, -0.0326556689197955, 0.906664533290402, 2.06959155533505,
-0.496336856936472, 0.948109444486475, -0.60791873399096, -0.836920224242405,
0.497590648317418, 0.345677324643562, 0.528694311129923, -1.5484380984862,
-1.59279590104225, -0.221826312405977, -0.245786985298441, -1.22434134315465,
-0.686852371353265, 0.24417107585143, 0.301642676337344, -1.25946396898093,
-0.907194092428637, -0.423966820565071, 0.328983814921655, -0.742266224892033,
-1.8049463252895, 0.0231913829306193, -0.946213980365056, 0.49515075621433,
0.260124536504241, 1.20600135926941, 1.09634207344526, -0.806868498981945,
2.17819215173134, 0.12770046311082, -0.115870563365191, 1.92507465799405,
-0.0174980256086261, 0.0837768233442609, -0.700249518989006,
3.31882421660283, 0.0685791134716462, 0.462489468253112, 0.12367414627459,
0.774911853045879, 0.710068546448154, 0.311284054769298, 0.371253224469632,
-0.945038589967606, -0.168988406898258, -0.889943557164662, 0.164952778182874,
-0.233831713495982, -1.76900051051107, 0.220047810985818, -0.577521172371895,
-1.37509015572961, 0.0785906712967843, -0.320193820382072, -0.325067957279463
), .Dim = c(20L, 3L), .Dimnames = list(c("Man United", "Leicester",
"Newcastle", "Liverpool", "Arsenal", "Leeds", "Everton", "Tottenham",
"Coventry", "Chelsea", "Man City", "Middlesbrough", "Aston Villa",
"Bradford", "Charlton", "Ipswich", "Sunderland", "Derby", "Southampton",
"West Ham"), c("Attack", "Defense", "Success")))), .Names = "scores"),
`2000-09-11` = structure(list(scores = structure(c(2.0393133346101,
-0.540829703243983, -0.112676786866554, 0.737159302036929,
2.06330033142029, -0.566884605341195, 0.846093684747277,
-0.703918307389998, -0.959042142708014, 0.46674571916184,
0.198090956701195, 0.4085303953687, 0.564657150954971, -1.71918010765161,
-1.676904352495, -0.0470924017034225, -0.198365096964476,
-1.2681656570254, 0.155161529580561, 0.314006756807798, -1.20196548842488,
-0.931781220419512, -0.474448866704706, 0.186513840023453,
-0.872801458087194, -1.77570529857168, -0.105417478024948,
-0.95653279019992, 0.383018139632662, 0.11701681685574, 0.967101862640228,
0.84141630595534, 0.995275000232571, -0.906624488611703,
2.05071990529631, 1.08136983474088, -0.212336474435291, 1.70999792726233,
-0.111513634837269, -0.7833024343224, 3.36317974520892, -0.169706477913325,
0.402653854546479, 0.0896055389478296, 0.783966989384827,
0.814723517727525, 0.387397457869648, 0.501675202128876,
-1.00885846596321, -0.230975799609684, -0.749546449102057,
0.227106788590891, -0.0859415270077576, -0.200219271266986,
-1.79524576643927, -0.39126646888844, -0.368233314263709,
-1.22288543397946, -0.246232196286514, -0.101197923684588
), .Dim = c(20L, 3L), .Dimnames = list(c("Man United", "Leicester",
"Newcastle", "Liverpool", "Arsenal", "Leeds", "Everton",
"Tottenham", "Coventry", "Chelsea", "Man City", "Middlesbrough",
"Charlton", "Aston Villa", "Bradford", "Derby", "Ipswich",
"Sunderland", "Southampton", "West Ham"), c("Attack", "Defense",
"Success")))), .Names = "scores"), `2000-09-16` = structure(list(
scores = structure(c(1.92322158767458, -0.61891728696854,
-0.207035659727411, 0.688128125165125, 0.246315084032231,
1.95880174075958, -0.648638451449831, 0.768090739958042,
-1.0191583675216, 0.3656920613234, 0.124998067667584,
0.323564120241808, 0.542301440975899, -1.76485773883853,
-1.7642466815073, -0.066324937731207, -0.350981404691087,
-1.38323736267654, 0.0881220808769143, 0.794162842436876,
-1.40224189200917, -1.05510108659065, -0.617418626982966,
0.0800888050321076, -0.400826740065721, -0.982638622688023,
-1.96015135404974, -0.22407473281442, 0.257657853367004,
0.0137337322954092, 0.890667127068695, 0.80253512727734,
0.928353461448457, -1.01661460471081, 1.93243466881776,
1.09289024885474, -0.359958801143917, 1.63993375643849,
-0.193560894118028, 0.574292574573439, 3.39626154818425,
-0.0293709386209353, 0.513750754643648, 0.28019086215193,
0.28019086215193, 0.851507423165214, 0.815035146855537,
0.408458215822548, -0.984289615817692, -0.20348373995346,
-0.674727815044826, 0.166620914769853, -0.0669389777218656,
-0.239956016263137, -1.69324670185382, -0.445321041006155,
-0.336971146523261, -1.15012500858924, -0.308776278774561,
-0.578808447575956), .Dim = c(20L, 3L), .Dimnames = list(
c("Man United", "Leicester", "Newcastle", "Liverpool",
"Tottenham", "Arsenal", "Leeds", "Everton", "Coventry",
"Chelsea", "Man City", "Middlesbrough", "Charlton",
"Aston Villa", "Bradford", "Derby", "Ipswich", "Sunderland",
"Southampton", "West Ham"), c("Attack", "Defense",
"Success")))), .Names = "scores"), `2000-09-17` = structure(list(
scores = structure(c(2.23950654572345, 2.53534637007243,
-1.02814784294904, 0.0758308950162754, 0.18010645884533,
-0.0555578804246226, -1.20639453648404, 0.628104564963435,
-0.359037143604242, 0.657288957120714, -0.0561769298423526,
-0.985662695245933, -0.822656590242715, 0.569002594138633,
-0.202384066222586, -0.465304772569995, -0.301679618149048,
-1.63709664978296, 0.027857253761329, 0.207055085875938,
-1.17481345793862, -1.02190991527362, -1.58188518175494,
-0.585777915399439, -0.143360945380226, -0.125183473879223,
-0.884351783270966, 0.861181295478697, -1.45949108937662,
0.485164154534398, -0.0783646033326118, 1.16399232392728,
1.59113167332065, 0.118268772413523, -0.672634459855927,
0.125845392474999, 0.0420698284585762, 2.10407379588099,
1.40440766427038, -0.168362075297294, 3.21825409955167,
0.936728354347971, 0.0735920870226012, 0.780725963847763,
0.403380549078277, -0.0824103034776063, -0.0523066073505803,
0.0561388304358171, 0.546381831688184, -0.208308997850788,
-0.585654412620274, -1.44879067994564, -0.854554389603362,
0.0862425265628431, 0.0862425265628431, -0.364311388350996,
0.199140113045724, -1.95648693778479, -0.638344606849103,
-0.195658558310546), .Dim = c(20L, 3L), .Dimnames = list(
c("Man United", "Arsenal", "Leicester", "Liverpool",
"Tottenham", "Newcastle", "Aston Villa", "Charlton",
"Leeds", "Everton", "Ipswich", "Coventry", "Sunderland",
"Southampton", "Chelsea", "Man City", "Middlesbrough",
"Bradford", "Derby", "West Ham"), c("Attack", "Defense",
"Success")))), .Names = "scores")), .Names = c("2000-09-10",
"2000-09-11", "2000-09-16", "2000-09-17"))
游戏：
> dput(games)
structure(list(Season = c(1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1),
Div = structure(c(1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L,
1L, 1L), .Label = "E0", class = "factor"), Date = structure(c(11210,
11211, 11216, 11216, 11216, 11216, 11216, 11216, 11216, 11217,
11217, 11217), class = "Date"), HomeTeam = structure(c(7L,
11L, 1L, 6L, 9L, 3L, 8L, 5L, 10L, 2L, 4L, 12L), .Label = c("Arsenal",
"Chelsea", "Everton", "Man City", "Southampton", "Aston Villa",
"Derby", "Leeds", "Charlton", "Sunderland", "Tottenham",
"West Ham"), class = "factor"), AwayTeam = structure(c(10L,
5L, 11L, 9L, 4L, 3L, 7L, 8L, 6L, 1L, 12L, 2L), .Label = c("Leicester",
"Liverpool", "Man United", "Tottenham", "West Ham", "Derby",
"Ipswich", "Newcastle", "Bradford", "Charlton", "Coventry",
"Middlesbrough"), class = "factor"), FTHG = c(2L, 1L, 2L,
2L, 1L, 1L, 1L, 2L, 2L, 0L, 1L, 1L), FTAG = c(2L, 0L, 1L,
0L, 0L, 3L, 2L, 0L, 1L, 2L, 1L, 1L), FTR = structure(c(2L,
3L, 3L, 3L, 3L, 1L, 1L, 3L, 3L, 1L, 2L, 2L), .Label = c("A",
"D", "H"), class = "factor")), .Names = c("Season", "Div",
"Date", "HomeTeam", "AwayTeam", "FTHG", "FTAG", "FTR"), row.names = 23053:23064, class = "data.frame")
答案 0 :(得分：0)
同样仍然只针对一个专栏，但解决了您的问题：
games_list <- list()
for(p in 1:length(para)) {
# create the list of the same table over and over
games_list[[p]] <- games
# create the new column
games_list[[p]]$Home.att <- NA
# loop through
for (g in 1:nrow(games_list[[p]])) {
for(r in 1:nrow(data.frame(para[[p]])))
if(games_list[[p]][g,]$HomeTeam==row.names(data.frame(para[[p]]))[r]) {
games_list[[p]][g,]$Home.att <- data.frame(para[[p]])[r,]$scores.Attack
}
}
}