我目前正在尝试使用dplyr更新data.frame中的值但我不知道是否可以替换值的子集？
# the net4 table
head(net4)
Source: local data frame [6 x 4]
temps2 NNET NET ave
1 18 2 4 36
2 18 2 4 36
3 22 2 4 44
4 18 2 4 36
5 22 2 4 44
6 27 3 4 36
# I would like to do the same command line as below:
subs <- (net4$ave < 10 & net4$ave!=net4$temps2)
net4$ave[subs] <- with(net4[subs,], temps2/NNET*NET)
谢谢