data.frame列长度不相等

这太奇怪了。我有一个20列200行的数据框。当我计算行数时

nrow(df)

我得到200英镑。但是当我单独调用一些列并计算它们的长度时，比如说

length(df$x3)

我得到的数字与200略有不同，例如207、203等。这仅适用于部分列，而其余列的长度为200

我通过强制使用wordVectors包训练的word2vec模型创建VectorSpaceModel对象来创建这个data.frame。这里大致是我所做的：

term_vec <- c("word1", "word2", "word3", ..., "word20")
properties <- model[[term_vec, average = F]]
df_prop <- as.data.frame(t(properties))

但是

长度（df_prop$driver）
[1] 207
>linmod str（df_道具$driver）
数值[1:207]0.1928-0.1774-0.1946-0.2157-0.0734。。。
>sapply（df_道具，职业）
活化蛋白癌作用癌基因缺失复发
“numeric”“numeric”“numeric”“numeric”“numeric”“numeric”“numeric”
驱动器cbl增益中性多晶型deleteri loh开关
“numeric”“numeric”“numeric”“numeric”“numeric”“numeric”“numeric”
passeng不确定杂合性q249e
“数字”“数字”“数字”“数字”
>长度（df_道具$passeng）
[1] 204
>长度（df_道具$neutral）
[1] 204
>长度（df_道具$driver）
[1] 207
>dput（df_道具[c（“passeng”、“neutral”、“driver”））
结构（列表）（passeng=c（0.452785223722458，-0.349059224128723，
0.223233446478844, -0.285723477602005, -0.0530807785689831, -0.112091585993767, 
0.0916753336787224, -0.505712330341339, -0.0289060920476913, 
-0.0842016264796257, 0.338186889886856, 0.586610317230225, 0.216203600168228, 
0.410553187131882, 0.0717814415693283, -0.0429450906813145, -0.0296403076499701, 
-0.23951618373394, 0.159736976027489, -0.414268016815186, 0.0648640096187592, 
-0.0192434135824442, -0.0520854219794273, 0.133157446980476, 
-0.00781008694320917, 0.0803053453564644, 0.04029206559062, -0.227307245135307, 
-0.34715148806572, 0.0180112048983574, 0.0419463403522968, -0.287112087011337, 
-0.103216387331486, -0.00813597533851862, -0.473377019166946, 
0.02095066010952, -0.0118085974827409, 0.0805344358086586, -0.0890048146247864, 
-0.0509019605815411, 0.0337137281894684, -0.140259340405464, 
-0.164335578680038, 0.0143457390367985, -0.421713650226593, -0.350066483020782, 
0.256413668394089, -0.262221038341522, 0.125508412718773, -0.1669010668993, 
-0.323957771062851, 0.121560901403427, 0.0398254878818989, -0.127609387040138, 
-0.348305493593216, -0.59373140335083, -0.43903249502182, 0.018520962446928, 
0.201807394623756, -0.444083839654922, 0.200975254178047, -0.301672697067261, 
0.230098724365234, 0.0907209143042564, 0.0885164812207222, 0.0177833493798971, 
-0.0124702183529735, -0.0641361474990845, -0.0831363871693611, 
-0.19027952849865, -0.166728913784027, 0.0293176043778658, 0.142488345503807, 
0.319564342498779, 0.0564890131354332, 0.0332652218639851, 0.0741571933031082, 
-0.0815279185771942, 0.0147021086886525, 0.077141061425209, -0.177572771906853, 
0.0499499812722206, -0.0831519737839699, 0.112121917307377, -0.103135667741299, 
-0.353338032960892, 0.15715280175209, -0.125472351908684, -0.144316121935844, 
-0.223944634199142, 0.0473198145627975, -0.285173535346985, -0.091559074819088, 
-0.23955462872982, -0.135925456881523, 0.106332272291183, 0.3387231528759, 
-0.230065390467644, -0.0370972417294979, -0.267686247825623, 
0.0271094776690006, -0.263466387987137, -0.124173454940319, -0.129989266395569, 
0.0639095827937126, 0.0804392695426941, -0.205364063382149, 0.34429532289505, 
-0.239175975322723, 0.521911144256592, -0.0506611131131649, 0.0372519791126251, 
-0.110514439642429, 0.0399324893951416, -0.0326474010944366, 
0.0534966289997101, -0.336249321699142, 0.0687438398599625, -0.0149638978764415, 
-0.079196035861969, 0.0412308536469936, -0.168989613652229, 0.426938116550446, 
0.108011208474636, 0.356941521167755, -0.35343012213707, 0.208558425307274, 
-0.0620005242526531, 0.13456092774868, -0.214266702532768, -0.314923346042633, 
-0.0311665218323469, -0.192426383495331, 0.103004567325115, -0.119352847337723, 
0.0841932892799377, -0.0218736603856087, -0.178017675876617, 
-0.124427333474159, 0.233909919857979, 0.0559673868119717, -0.104320652782917, 
0.296732783317566, -0.19652085006237, 0.28268176317215, 0.118357747793198, 
0.324692904949188, 0.173546448349953, 0.119432643055916, -0.0791224911808968, 
0.119982831180096, -0.141497865319252, -0.191946685314178, 0.154124990105629, 
0.185841098427773, -0.147911578416824, 0.408693969249725, 0.151209264993668, 
-0.432886987924576, 0.00650644721463323, -0.315581798553467, 
-0.247532770037651, 0.143373981118202, -0.364778310060501, 0.226706951856613, 
0.0187635440379381, -0.0128085305914283, -0.116108402609825, 
-0.203655496239662, -0.063552051782608, 0.0922449454665184, -0.371555089950562, 
-0.143712520599365, 0.323709845542908, -0.0827256366610527, 0.10759025067091, 
0.342874735593796, -0.266680926084518, 0.24025596678257, 0.35177743434906, 
0.00122027634643018, 0.320188760757446, 0.180638343095779, 0.204436093568802, 
-0.049614429473877, -0.0895709544420242, -0.0814719721674919, 
0.000497184810228646, 0.15266053378582, 0.243941411375999, 0.0695823654532433, 
-0.0984447300434113, 0.156076744198799, 0.40799942612648, -0.359382539987564, 
-0.0958247110247612, -0.063414603471756, -0.492347091436386, 
-0.212932005524635, -0.399490386247635, 0.452785223722458, -0.349059224128723, 
0.223233446478844，-0.28572377602005），中性=c（0.062428388745927，
0.106615483760834, -0.242450177669525, -0.00875413231551647, 
-0.0607167445123196, -0.0874784588813782, 0.0159694887697697, 
-0.310035288333893, -0.470642864704132, 0.312223583459854, -0.0133906025439501, 
0.456694394350052, 0.327305197715759, -0.0492987744510174, -0.327871382236481, 
0.0123024489730597, -0.112976022064686, -0.183681637048721, 0.07863641530
str(df_prop)

'data.frame':   200 obs. of  20 variables:
 $ activ         : num  -0.02795 0.00135 0.25447 0.02538 -0.02762 ...
 $ protein       : num  -0.0374 -0.2037 0.1852 -0.229 0.0437 ...
 $ cancer        : num  -0.2043 0.0144 0.1125 0.0405 0.09 ...
 $ role          : num  -0.1164 -0.2313 -0.0207 0.1405 -0.1694 ...
 $ oncogen       : num  -0.19599 -0.0771 0.00398 0.06351 -0.1299 ...
 $ loss          : num  -0.17479 -0.4214 0.28711 -0.07563 -0.00643 ...
 $ missens       : num  -0.1502 -0.4113 -0.0141 -0.1355 -0.0793 ...
 $ recurr        : num  0.16952 -0.31017 -0.00389 -0.06503 -0.03874 ...
 $ driver        : num  0.1928 -0.1774 -0.1946 -0.2157 -0.0734 ...
 $ cbl           : num  0.0593 -0.4683 -0.0712 0.184 0.1519 ...
 $ gain          : num  0.128 -0.313 0.251 -0.135 0.101 ...
 $ neutral       : num  0.06243 0.10662 -0.24245 -0.00875 -0.06072 ...
 $ polymorph     : num  0.0526 -0.2005 0.1147 -0.2716 0.2272 ...
 $ deleteri      : num  0.0705 -0.1022 -0.289 0.1769 -0.0114 ...
 $ loh           : num  -0.0133 -0.533 0.2306 -0.0127 0.1488 ...
 $ switch        : num  -0.1088 0.0453 -0.1768 0.1646 0.0477 ...
 $ passeng       : num  0.4528 -0.3491 0.2232 -0.2857 -0.0531 ...
 $ inconclus     : num  0.56665 0.00575 0.10589 -0.09961 -0.00753 ...
 $ heterozygosity: num  -0.0212 -0.7096 0.4345 -0.0401 0.0158 ...
 $ q249e         : num  -0.382 -0.673 -0.153 0.145 -0.18 ...

length(df_prop$driver)
[1] 207

> linmod <- lm(passeng ~ neutral + driver, data = df_prop)
Error in model.frame.default(formula = passeng ~ neutral + driver, data = df_prop,  : 
  variable lengths differ (found for 'driver')

> str(df_prop$driver)
 num [1:207] 0.1928 -0.1774 -0.1946 -0.2157 -0.0734 ...

> sapply(df_prop, class)
         activ        protein         cancer           role        oncogen           loss        missens         recurr 
     "numeric"      "numeric"      "numeric"      "numeric"      "numeric"      "numeric"      "numeric"      "numeric" 
        driver            cbl           gain        neutral      polymorph       deleteri            loh         switch 
     "numeric"      "numeric"      "numeric"      "numeric"      "numeric"      "numeric"      "numeric"      "numeric" 
       passeng      inconclus heterozygosity          q249e 
     "numeric"      "numeric"      "numeric"      "numeric" 

> length(df_prop$passeng)
[1] 204
> length(df_prop$neutral)
[1] 204
> length(df_prop$driver)
[1] 207
> dput(df_prop[c("passeng", "neutral", "driver")])
structure(list(passeng = c(0.452785223722458, -0.349059224128723, 
0.223233446478844, -0.285723477602005, -0.0530807785689831, -0.112091585993767, 
0.0916753336787224, -0.505712330341339, -0.0289060920476913, 
-0.0842016264796257, 0.338186889886856, 0.586610317230225, 0.216203600168228, 
0.410553187131882, 0.0717814415693283, -0.0429450906813145, -0.0296403076499701, 
-0.23951618373394, 0.159736976027489, -0.414268016815186, 0.0648640096187592, 
-0.0192434135824442, -0.0520854219794273, 0.133157446980476, 
-0.00781008694320917, 0.0803053453564644, 0.04029206559062, -0.227307245135307, 
-0.34715148806572, 0.0180112048983574, 0.0419463403522968, -0.287112087011337, 
-0.103216387331486, -0.00813597533851862, -0.473377019166946, 
0.02095066010952, -0.0118085974827409, 0.0805344358086586, -0.0890048146247864, 
-0.0509019605815411, 0.0337137281894684, -0.140259340405464, 
-0.164335578680038, 0.0143457390367985, -0.421713650226593, -0.350066483020782, 
0.256413668394089, -0.262221038341522, 0.125508412718773, -0.1669010668993, 
-0.323957771062851, 0.121560901403427, 0.0398254878818989, -0.127609387040138, 
-0.348305493593216, -0.59373140335083, -0.43903249502182, 0.018520962446928, 
0.201807394623756, -0.444083839654922, 0.200975254178047, -0.301672697067261, 
0.230098724365234, 0.0907209143042564, 0.0885164812207222, 0.0177833493798971, 
-0.0124702183529735, -0.0641361474990845, -0.0831363871693611, 
-0.19027952849865, -0.166728913784027, 0.0293176043778658, 0.142488345503807, 
0.319564342498779, 0.0564890131354332, 0.0332652218639851, 0.0741571933031082, 
-0.0815279185771942, 0.0147021086886525, 0.077141061425209, -0.177572771906853, 
0.0499499812722206, -0.0831519737839699, 0.112121917307377, -0.103135667741299, 
-0.353338032960892, 0.15715280175209, -0.125472351908684, -0.144316121935844, 
-0.223944634199142, 0.0473198145627975, -0.285173535346985, -0.091559074819088, 
-0.23955462872982, -0.135925456881523, 0.106332272291183, 0.3387231528759, 
-0.230065390467644, -0.0370972417294979, -0.267686247825623, 
0.0271094776690006, -0.263466387987137, -0.124173454940319, -0.129989266395569, 
0.0639095827937126, 0.0804392695426941, -0.205364063382149, 0.34429532289505, 
-0.239175975322723, 0.521911144256592, -0.0506611131131649, 0.0372519791126251, 
-0.110514439642429, 0.0399324893951416, -0.0326474010944366, 
0.0534966289997101, -0.336249321699142, 0.0687438398599625, -0.0149638978764415, 
-0.079196035861969, 0.0412308536469936, -0.168989613652229, 0.426938116550446, 
0.108011208474636, 0.356941521167755, -0.35343012213707, 0.208558425307274, 
-0.0620005242526531, 0.13456092774868, -0.214266702532768, -0.314923346042633, 
-0.0311665218323469, -0.192426383495331, 0.103004567325115, -0.119352847337723, 
0.0841932892799377, -0.0218736603856087, -0.178017675876617, 
-0.124427333474159, 0.233909919857979, 0.0559673868119717, -0.104320652782917, 
0.296732783317566, -0.19652085006237, 0.28268176317215, 0.118357747793198, 
0.324692904949188, 0.173546448349953, 0.119432643055916, -0.0791224911808968, 
0.119982831180096, -0.141497865319252, -0.191946685314178, 0.154124990105629, 
0.185841098427773, -0.147911578416824, 0.408693969249725, 0.151209264993668, 
-0.432886987924576, 0.00650644721463323, -0.315581798553467, 
-0.247532770037651, 0.143373981118202, -0.364778310060501, 0.226706951856613, 
0.0187635440379381, -0.0128085305914283, -0.116108402609825, 
-0.203655496239662, -0.063552051782608, 0.0922449454665184, -0.371555089950562, 
-0.143712520599365, 0.323709845542908, -0.0827256366610527, 0.10759025067091, 
0.342874735593796, -0.266680926084518, 0.24025596678257, 0.35177743434906, 
0.00122027634643018, 0.320188760757446, 0.180638343095779, 0.204436093568802, 
-0.049614429473877, -0.0895709544420242, -0.0814719721674919, 
0.000497184810228646, 0.15266053378582, 0.243941411375999, 0.0695823654532433, 
-0.0984447300434113, 0.156076744198799, 0.40799942612648, -0.359382539987564, 
-0.0958247110247612, -0.063414603471756, -0.492347091436386, 
-0.212932005524635, -0.399490386247635, 0.452785223722458, -0.349059224128723, 
0.223233446478844, -0.285723477602005), neutral = c(0.0624283887445927, 
0.106615483760834, -0.242450177669525, -0.00875413231551647, 
-0.0607167445123196, -0.0874784588813782, 0.0159694887697697, 
-0.310035288333893, -0.470642864704132, 0.312223583459854, -0.0133906025439501, 
0.456694394350052, 0.327305197715759, -0.0492987744510174, -0.327871382236481, 
0.0123024489730597, -0.112976022064686, -0.183681637048721, 0.0786364153027534, 
-0.0556268356740475, 0.0593749359250069, 0.308130115270615, 0.0545936934649944, 
0.0112099116668105, 0.195658937096596, -0.0926103219389915, 0.131353974342346, 
0.36189866065979, -0.310230076313019, -0.0959832593798637, 0.0129279075190425, 
0.0170739497989416, -0.212557435035706, -0.10607548803091, 0.0198365785181522, 
-0.0790213569998741, 0.233813554048538, 0.0603582486510277, 0.0574430525302887, 
-0.0025249389000237, 0.178253039717674, -0.161745145916939, -0.0651656538248062, 
0.0898096263408661, -0.199210107326508, 0.345266789197922, -0.0608342587947845, 
-0.0240304097533226, -0.059606347233057, 0.237234279513359, -0.182934284210205, 
-0.0805316418409348, 0.477729558944702, 0.355416506528854, -0.195008412003517, 
-0.285221040248871, -0.275740891695023, -0.0590328797698021, 
0.00807524751871824, -0.181720346212387, 0.133480831980705, -0.0923505499958992, 
0.319016247987747, 0.310231000185013, 0.0212804675102234, -0.158257618546486, 
-0.00906388554722071, 0.133870497345924, 0.163518846035004, 0.159345477819443, 
0.00162855989765376, -0.244596600532532, 0.265527069568634, -0.0766861364245415, 
0.071528285741806, 0.200394779443741, -0.0659522116184235, -0.0894035324454308, 
0.386227011680603, 0.155652150511742, 0.206601455807686, -0.34688338637352, 
0.103099264204502, 0.336126208305359, -0.109791465103626, 0.025560649111867, 
0.18004846572876, 0.0455960370600224, 0.129409417510033, -0.0663190484046936, 
-0.0694380551576614, 0.269877940416336, 0.123965159058571, 0.208219081163406, 
-0.0259098093956709, 0.0244570504873991, -0.0531765818595886, 
-0.224155947566032, -0.115240715444088, 0.0962978675961494, 0.157494246959686, 
0.00240525603294373, -0.0600106082856655, 0.167411848902702, 
-0.00585554260760546, 0.0355127118527889, -0.196092844009399, 
-0.0188772100955248, -0.151142120361328, -0.200211212038994, 
-0.0215719062834978, 0.0169646516442299, -0.16918058693409, -0.0534995049238205, 
0.143689811229706, 0.0359412282705307, 0.279378980398178, 0.258504390716553, 
-0.074554406106472, 0.335559964179993, 0.263022631406784, 0.197986051440239, 
-0.138966783881187, 0.195296406745911, 0.143159613013268, -0.148128971457481, 
0.3902488052845, -0.345333695411682, -0.134910404682159, 0.135866537690163, 
0.278762727975845, 0.118465282022953, -0.22791101038456, -0.154258042573929, 
-0.152354970574379, 0.0967835634946823, 0.476795643568039, -0.575522124767303, 
-0.1163110435009, 0.173384621739388, -0.249152660369873, -0.110836043953896, 
-0.120327040553093, 0.123326189815998, 0.036122415214777, 0.0511444658041, 
0.101496443152428, 0.142479866743088, 0.0739700049161911, -0.101869978010654, 
0.0706672668457031, -0.0612174309790134, 0.208535611629486, 0.0153503911569715, 
-0.121934145689011, -0.0994135960936546, 0.301655441522598, -0.117937028408051, 
-0.467048764228821, -0.126288637518883, -0.263451159000397, 0.164172038435936, 
0.365282714366913, 0.216561645269394, 0.185734942555428, 0.199943736195564, 
0.126512348651886, -0.072352223098278, 0.129932269454002, 0.309069633483887, 
0.000678401032928377, -0.00318608805537224, 0.136844977736473, 
0.366614729166031, -0.326217412948608, 0.0876872763037682, -0.0637753307819366, 
0.112328112125397, -0.392527550458908, 0.0157560463994741, 0.0637902021408081, 
-0.15483346581459, 0.0630035400390625, 0.167358994483948, 0.226734787225723, 
0.0888303220272064, 0.0440737493336201, 0.107901841402054, -0.115406967699528, 
-0.0672288686037064, -0.0101721612736583, -0.110640466213226, 
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