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我想从data您提供包名称的函数中捕获输出，并且该函数会产生静态输出。我想把它变成一个数据框。

目前以下给出了静态输出：

data(package = "ggplot2")

我希望它作为一个数据框，实际上永远不会产生外部静态输出。

diamonds                Prices of 50,000 round cut diamonds
economics               US economic time series.
midwest                 Midwest demographics.
movies                  Movie information and user ratings from IMDB.com.
mpg                     Fuel economy data from 1999 and 2008 for 38 popular models of car
msleep                  An updated and expanded version of the mammals sleep dataset.
presidential            Terms of 10 presidents from Eisenhower to Bush W.
seals                   Vector field of seal movements.
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1 回答 1

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这足以让你开始吗？

> data(package = "ggplot2")$results
     Package   LibPath                  Item          
[1,] "ggplot2" "/home/mrdwab/R/library" "diamonds"    
[2,] "ggplot2" "/home/mrdwab/R/library" "economics"   
[3,] "ggplot2" "/home/mrdwab/R/library" "midwest"     
[4,] "ggplot2" "/home/mrdwab/R/library" "movies"      
[5,] "ggplot2" "/home/mrdwab/R/library" "mpg"         
[6,] "ggplot2" "/home/mrdwab/R/library" "msleep"      
[7,] "ggplot2" "/home/mrdwab/R/library" "presidential"
[8,] "ggplot2" "/home/mrdwab/R/library" "seals"       
     Title                                                              
[1,] "Prices of 50,000 round cut diamonds"                              
[2,] "US economic time series."                                         
[3,] "Midwest demographics."                                            
[4,] "Movie information and user ratings from IMDB.com."                
[5,] "Fuel economy data from 1999 and 2008 for 38 popular models of car"
[6,] "An updated and expanded version of the mammals sleep dataset."    
[7,] "Terms of 10 presidents from Eisenhower to Bush W."                
[8,] "Vector field of seal movements."

显然，要获取data.frame“项目”和“标题”数据，您可以使用：

> data.frame(data(package = "ggplot2")$results)[-c(1, 2)]
          Item                                                             Title
1     diamonds                               Prices of 50,000 round cut diamonds
2    economics                                          US economic time series.
3      midwest                                             Midwest demographics.
4       movies                 Movie information and user ratings from IMDB.com.
5          mpg Fuel economy data from 1999 and 2008 for 38 popular models of car
6       msleep     An updated and expanded version of the mammals sleep dataset.
7 presidential                 Terms of 10 presidents from Eisenhower to Bush W.
8        seals                                   Vector field of seal movements.
于 2013-03-03T06:49:10.403 回答