我试图以特定方式将行重新排列到列中(最好使用dplyr),但我真的不知道从哪里开始。我正在尝试为每个人(比尔或鲍勃)创建一行,并将所有这些人的值放在一行上。到目前为止我已经
了df<-data.frame(
Participant=c("bob1","bill1","bob2","bill2"),
No_Photos=c(1,4,5,6)
)
res<-df %>% group_by(Participant) %>% dplyr::summarise(phot_mean=mean(No_Photos))
给了我:
Participant mean(No_Photos)
(fctr) (dbl)
1 bill1 4
2 bill2 6
3 bob1 1
4 bob2 5
目标:
mean_NO_Photos_1 mean_No_Photos_2
bob 1 5
bill 4 6
答案 0 :(得分:1)
使用tidyr
和dplyr
:
library(tidyr)
library(dplyr)
df %>% mutate(rep = extract_numeric(Participant),
Participant = gsub("[0-9]", "", Participant)) %>%
group_by(Participant, rep) %>%
summarise(mean = mean(No_Photos)) %>%
spread(rep, mean)
Source: local data frame [2 x 3]
Participant 1 2
(chr) (dbl) (dbl)
1 bill 4 6
2 bob 1 5