r - 如何在R包中找到所有功能？

Question

查找包中所有关联功能的最佳方法是什么？我目前正在通过caTools软件包。如果我执行?caTools或??caTools，我将只是搜索名为的函数，而不是包中的函数。有没有简单的方法可以访问R gui中的所有功能？有什么好的搜索功能的方法吗？

Answer 1

我猜想您只是在寻找help(package = caTools)，它将打开您的浏览器到相关的帮助页面，该页面列出了“caTools”包中的所有功能。

您也可以尝试:library(help = caTools)，但这似乎无法捕获所有内容。关于后一种方法的好处是，您可以捕获输出，以防需要在其他地方引用它:

x <- library(help = caTools)
x$info[[2]]
#  [1] "LogitBoost              LogitBoost Classification Algorithm"          
#  [2] "base64encode            Convert R vectors to/from the Base64 format"  
#  [3] "caTools-package         Tools: moving window statistics, GIF, Base64,"
#  [4] "                        ROC AUC, etc."                                
#  [5] "colAUC                  Column-wise Area Under ROC Curve (AUC)"       
#  [6] "combs                   All Combinations of k Elements from Vector v" 
#  [7] "predict.LogitBoost      Prediction Based on LogitBoost Classification"
#  [8] "                        Algorithm"                                    
#  [9] "read.ENVI               Read and Write Binary Data in ENVI Format"    
# [10] "read.gif                Read and Write Images in GIF format"          
# [11] "runmad                  Median Absolute Deviation of Moving Windows"  
# [12] "runmean                 Mean of a Moving Window"                      
# [13] "runmin                  Minimum and Maximum of Moving Windows"        
# [14] "runquantile             Quantile of Moving Window"                    
# [15] "runsd                   Standard Deviation of Moving Windows"         
# [16] "sample.split            Split Data into Test and Train Set"           
# [17] "sumexact                Basic Sum Operations without Round-off Errors"
# [18] "trapz                   Trapezoid Rule Numerical Integration"