对于VIM程序包中的睡眠数据，我在使用R程序包小鼠中的插补函数mice()时遇到问题。错误消息为$运算符对原子向量无效。睡眠数据的结构是：
> str(sleep)
'data.frame': 62 obs. of 10 variables:
$ BodyWgt : num 6654 1 3.38 0.92 2547 ...
$ BrainWgt: num 5712 6.6 44.5 5.7 4603 ...
$ NonD : num NA 6.3 NA NA 2.1 9.1 15.8 5.2 10.9 8.3 ...
$ Dream : num NA 2 NA NA 1.8 0.7 3.9 1 3.6 1.4 ...
$ Sleep : num 3.3 8.3 12.5 16.5 3.9 9.8 19.7 6.2 14.5 9.7 ...
$ Span : num 38.6 4.5 14 NA 69 27 19 30.4 28 50 ...
$ Gest : num 645 42 60 25 624 180 35 392 63 230 ...
$ Pred : int 3 3 1 5 3 4 1 4 1 1 ...
$ Exp : int 5 1 1 2 5 4 1 5 2 1 ...
$ Danger : int 3 3 1 3 4 4 1 4 1 1 ...
运行时显示错误
> mice(sleep)
iter imp variable
1 1 NonD Dream Sleep Span Gest
1 2 NonD Dream Sleep Span Gest
1 3 NonD Dream Sleep Span Gest
1 4 NonD Dream Sleep Span Gest
1 5 NonD Dream Sleep Span Gest
2 1 NonD Dream Sleep Span Error: $ operator is invalid for atomic vectors
我使用的是R 4.0.2、mice_3.11.0和VIM_6.0.0。
有人知道为什么会发生这种事吗？非常感谢。
> sessionInfo()
R version 4.0.2 (2020-06-22)
Platform: x86_64-w64-mingw32/x64 (64-bit)
Running under: Windows 10 x64 (build 18362)
Matrix products: default
locale:
[1] LC_COLLATE=Chinese (Traditional)_Taiwan.950 LC_CTYPE=Chinese (Traditional)_Taiwan.950
[3] LC_MONETARY=Chinese (Traditional)_Taiwan.950 LC_NUMERIC=C
[5] LC_TIME=Chinese (Traditional)_Taiwan.950
attached base packages:
[1] grid stats graphics grDevices utils datasets methods base
other attached packages:
[1] mvtnorm_1.1-0 glmnet_4.0 Matrix_1.2-18 boot_1.3-25 mice_3.11.0 MASS_7.3-51.6
[7] VIM_6.0.0 colorspace_1.4-1
loaded via a namespace (and not attached):
[1] shape_1.4.4 zoo_1.8-8 tidyselect_1.1.0 purrr_0.3.4 haven_2.2.0 lattice_0.20-41
[7] carData_3.0-4 vctrs_0.3.0 generics_0.0.2 rlang_0.4.6 e1071_1.7-3 pillar_1.4.4
[13] foreign_0.8-80 glue_1.4.1 sp_1.4-2 readxl_1.3.1 foreach_1.5.0 lifecycle_0.2.0
[19] robustbase_0.93-6 cellranger_1.1.0 zip_2.0.4 codetools_0.2-16 laeken_0.5.1 rio_0.5.16
[25] forcats_0.5.0 lmtest_0.9-37 curl_4.3 class_7.3-17 vcd_1.4-7 DEoptimR_1.0-8
[31] broom_0.5.6 Rcpp_1.0.4.6 backports_1.1.6 abind_1.4-5 ranger_0.12.1 hms_0.5.3
[37] stringi_1.4.6 openxlsx_4.1.5 dplyr_0.8.5 tools_4.0.2 magrittr_1.5 tibble_3.0.1
[43] crayon_1.3.4 car_3.0-8 tidyr_1.1.0 pkgconfig_2.0.3 ellipsis_0.3.1 data.table_1.12.8
[49] iterators_1.0.12 assertthat_0.2.1 R6_2.4.1 rpart_4.1-15 nnet_7.3-14 nlme_3.1-148
[55] compiler_4.0.2
我想我找到了解决方案。在"；小鼠"；不知怎么搞砸了mice((的功能。
一种解决方案是；小鼠"；最后，在导入所有其他库(包括tidyverse(之后，最后再导入鼠标。