如何命名R中数据帧的第一个未命名列标题

我有以下数据框

df <- structure(c("1450783_at Ifit1", "1417793_at Irgm2", "1418191_at Usp18",
"1445897_s_at Ifi35", "1438868_at Phf11d", "1438004_at Papd7",
"-0.946463848219996", "-1.02996255295994", "-1.08671744204772",
"-0.99957964419579", "-0.823103726651139", "-0.879596943746683",
"-0.81666670993138", "-0.751419221027377", "-0.771297530228225",
"-0.788962065407382", "-0.845247178175189", "-0.836283457880369",
"0.670196443309756", "0.654252942446252", "0.760493091259822",
"0.810593059985653", "0.701631078290633", "0.732997453122236",
"1.380387289393", "1.37328340394659", "1.27108996508917", "1.27736715351672",
"1.39124142575392", "1.35937709488124", "-0.287453174551374",
"-0.246154572405521", "-0.173568084073049", "-0.299418503899194",
"-0.424521599218227", "-0.376494146376421"), .Dim = c(6L, 6L), .Dimnames = list(
    c("1450783_at Ifit1", "1417793_at Irgm2", "1418191_at Usp18",
    "1445897_s_at Ifi35", "1438868_at Phf11d", "1438004_at Papd7"
    ), c("", "(3)ADX.ID.LN.x1", "(3)ADX.ID.LN.x2", "(3)ALM.ID.LN.x2",
    "(3)ALM.ID.LN.x1", "(3)ALM.ID.LN.x3")))

我想做的是用“ProbeGene”命名第一个未命名的列。 所以它看起来像这样：

> df 
                                        (3)ADX.ID.LN.x1      (3)ADX.ID.LN.x2     
1450783_at Ifit1   "1450783_at Ifit1"   "-0.946463848219996" "-0.81666670993138" 
1417793_at Irgm2   "1417793_at Irgm2"   "-1.02996255295994"  "-0.751419221027377"
1418191_at Usp18   "1418191_at Usp18"   "-1.08671744204772"  "-0.771297530228225"
1445897_s_at Ifi35 "1445897_s_at Ifi35" "-0.99957964419579"  "-0.788962065407382"
1438868_at Phf11d  "1438868_at Phf11d"  "-0.823103726651139" "-0.845247178175189"
1438004_at Papd7   "1438004_at Papd7"   "-0.879596943746683" "-0.836283457880369"
                   (3)ALM.ID.LN.x2     (3)ALM.ID.LN.x1    (3)ALM.ID.LN.x3     
1450783_at Ifit1   "0.670196443309756" "1.380387289393"   "-0.287453174551374"
1417793_at Irgm2   "0.654252942446252" "1.37328340394659" "-0.246154572405521"
1418191_at Usp18   "0.760493091259822" "1.27108996508917" "-0.173568084073049"
1445897_s_at Ifi35 "0.810593059985653" "1.27736715351672" "-0.299418503899194"
1438868_at Phf11d  "0.701631078290633" "1.39124142575392" "-0.424521599218227"
1438004_at Papd7   "0.732997453122236" "1.35937709488124" "-0.376494146376421"

                       ProbeGene                 (3)ADX.ID.LN.x1      (3)ADX.ID.LN.x2     
1450783_at Ifit1   "1450783_at Ifit1"   "-0.946463848219996" "-0.81666670993138" 

我怎样才能做到这一点

---

我尝试了这个

names（df）[1]您应该更改
colnames
而不是
names

colnames(df)[1]<-"ProbeGene"

colnames（df）[1]请注意，您的数据当前存储为矩阵，而不是data.frame。这就是names（）函数不起作用的原因，也是所有数值列必须存储为字符串（矩阵只能有一种类型）的原因。
ProbeGene            (3)ADX.ID.LN.x1       (3)ADX.ID.LN.x2      (3)ALM.ID.LN.x2     (3)ALM.ID.LN.x1    (3)ALM.ID.LN.x3     
1450783_at Ifit1   "1450783_at Ifit1"   "-0.946463848219996" "-0.81666670993138"  "0.670196443309756" "1.380387289393"   "-0.287453174551374"
1417793_at Irgm2   "1417793_at Irgm2"   "-1.02996255295994"  "-0.751419221027377" "0.654252942446252" "1.37328340394659" "-0.246154572405521"
1418191_at Usp18   "1418191_at Usp18"   "-1.08671744204772"  "-0.771297530228225" "0.760493091259822" "1.27108996508917" "-0.173568084073049"
1445897_s_at Ifi35 "1445897_s_at Ifi35" "-0.99957964419579"  "-0.788962065407382" "0.810593059985653" "1.27736715351672" "-0.299418503899194"
1438868_at Phf11d  "1438868_at Phf11d"  "-0.823103726651139" "-0.845247178175189" "0.701631078290633" "1.39124142575392" "-0.424521599218227"
1438004_at Papd7   "1438004_at Papd7"   "-0.879596943746683" "-0.836283457880369" "0.732997453122236" "1.35937709488124" "-0.376494146376421"