当我在本地数据框中有一列时,有时我会收到Variables not shown
诸如这个(荒谬的)示例之类的消息,它只需要足够的列。
library(dplyr)
library(ggplot2) # for movies
movies %.%
group_by(year) %.%
summarise(Length = mean(length), Title = max(title),
Dramaz = sum(Drama), Actionz = sum(Action),
Action = sum(Action), Comedyz = sum(Comedy)) %.%
mutate(Year1 = year + 1)
year Length Title Dramaz Actionz Action Comedyz
1 1898 1.000000 Pack Train at Chilkoot Pass 1 0 0 2
2 1894 1.000000 Sioux Ghost Dance 0 0 0 0
3 1902 3.555556 Voyage dans la lune, Le 1 0 0 2
4 1893 1.000000 Blacksmith Scene 0 0 0 0
5 1912 24.382353 Unseen Enemy, An 22 0 0 4
6 1922 74.192308 Trapped by the Mormons 20 0 0 16
7 1895 1.000000 Photographe 0 0 0 0
8 1909 9.266667 What Drink Did 14 0 0 7
9 1900 1.437500 Uncle Josh's Nightmare 2 0 0 5
10 1919 53.461538 When the Clouds Roll by 17 2 2 29
.. ... ... ... ... ... ... ...
Variables not shown: Year1 (dbl)
我想看看Year1
!我如何查看所有列,最好是默认情况下。