我最近将RStudio更新为3.3.1，从那时起，当我使用dplyr运行以下代码时，R告诉我＆＃34;此应用程序已请求Runtime以不寻常的方式终止它＆＃34;。
max_trop <- df %>% group_by(record_id) %>% summarise(max= max(troponin, na.rm=TRUE))
是否有人能够告诉我，我是否做了特别愚蠢的事情？过去工作得很好......
非常感谢
sessionInfo（）
R version 3.3.1 (2016-06-21)Platform: i386-w64-mingw32/i386 (32-bit)
Running under: Windows 7 x64 (build 7601) Service Pack 1
locale:[1] LC_COLLATE=English_United Kingdom.1252
LC_CTYPE=English_United Kingdom.1252
[3] LC_MONETARY=English_United Kingdom.1252 LC_NUMERIC=C
[5] LC_TIME=English_United Kingdom.1252
attached base packages:
[1] stats graphics grDevices utils datasets methods base
other attached packages:
[1] dplyr_0.5.0
loaded via a namespace (and not attached):
[1] magrittr_1.5 R6_2.1.2 assertthat_0.1 DBI_0.4-1
tools_3.3.1 tibble_1.1 Rcpp_0.12.6