r - 箱线图问题：二元运算符的非数字参数

Question

好的，所以我正在尝试制作箱线图。对于初学者来说，这就是我的一部分数据的样子：

 Treatment   Samplename   Cp_ rp49   Cp_ RpL13a    Cp_ Att  2   
Control T0    T0: C1.1  22.37439066 19.71617973 26.79406584 3   
Control T1    T1: C1.1  27.70984514  21.6094783 31.37710115 4   
Control T0     T0: C1.2 23.94895554  20.2301651 28.07790884 5   
Control T1     T1: C1.2  24.9460447 20.65787086   31.059088 6   
Control T0    T0: C1.3  20.65417772 19.45722779 27.99254728 7   
Control T1    T1: C1.3  23.35409393 22.00902552 32.88400615 8   
Control T0    T0: C1.4  20.90256385 20.06997278 28.50471711 9   
Control T1    T1: C1.4  21.72104997 20.16717242 30.77175249 10  
Control T0    T0: C1.5  20.02601658 18.97854848 29.33999551 11  
Control T1    T1: C1.5  22.53037788 21.09500453 29.54695224 12  
Matched T0    T0: M1.1  20.82294039 20.07027204 28.42884012 13  
Matched T1    T1: M1.1  23.09561604 21.73694742 31.61233879

现在我想通过使用从第一列和第四列制作一个箱线图

library(boxplotdbl)
boxplot(Cp_ATT~Treatment, data=df) 

我遇到了错误“二进制运算符的非数字参数”有什么办法可以在不将第一列的名称更改为数字的情况下完成这项工作？我希望我已经正确地提出了这个问题，非常感谢您。

编辑*

str(df)

    data.frame':    30 obs. of  16 variables:
 $ Treatment        : chr  "Control T0" "Control T1" "Control T0" "Control T1" ...
 $ Samplename       : chr  "T0: C1.1 " "T1: C1.1 " "T0: C1.2" "T1: C1.2" ...
 $ Cp_ rp49         : chr  "22.37439066" "27.70984514" "23.94895554" "24.9460447" ...
 $ Cp_ RpL13a       : chr  "19.71617973" "21.6094783" "20.2301651" "20.65787086" ...
 $ Cp_ Att          : chr  "26.79406584" "31.37710115" "28.07790884" "31.059088" ...
 $ Wichtig          : chr  "-4.419675173" "-3.667256008" "-4.1289533" "-6.113043298" ...
 $ dif_ RpL13aAtt1  : chr  "-7.077886105" "-9.767622856" "-7.847743741" "-10.40121714" ...
 $ Cp_ Def 2        : chr  "25.91183294" "30.75748354" "30.34625461" "30.49043802" ...
 $ dif_ rp49Def 2   : chr  "-3.537442276" "-3.047638397" "-6.397299069" "-5.544393316" ...
 $ dif_ RpL13aDef 2 : chr  "-6.195653208" "-9.148005245" "-10.11608951" "-9.832567163" ...
 $ Cp_ Def 3        : chr  "27.17909334" "34.26648509" "30.87750323" "34.67511797" ...
 $ dif_ rp49Def 3   : chr  "-4.804702672" "-6.556639948" "-6.92854769" "-9.729073266" ...
 $ dif_RpL13aDef 3  : chr  "-7.462913604" "-12.6570068" "-10.64733813" "-14.01724711" ...
 $ Cp_ Thau         : chr  "27.08349884" "32.82539626" "31.04172596" "30.54862188" ...
 $ dif_ rp49Thau    : chr  "-4.709108175" "-5.115551113" "-7.092770414" "-5.602577177" ...
 $ dif_ RpL13aThau  : chr  "-7.367319108" "-11.21591796" "-10.81156086" "-9.890751023" ...

标签： rboxplot