R语言【taxa】——roots(),stems(),subtaxa(),supertaxa():获取根节点、茎节点、子类群和父类群

roots(x, subset = NULL)

在 taxonomy 中查找根节点类群的索引值。

复制代码
> x <- taxonomy(c('Carnivora', 'Felidae', 'Panthera', 'Panthera leo',
+                 'Panthera tigris', 'Ursidae', 'Ursus', 'Ursus arctos'),
+               supertaxa = c(NA, 1, 2, 3, 3, 1, 6, 7))

> roots(x)
[1] 1

> roots(x, subset = 2:8)
[1] 2 6

stems(x, value = NULL, ...)

返回每个类群的茎节点的索引值。

复制代码
> x <- taxonomy(c('Carnivora', 'Felidae', 'Panthera', 'Panthera leo',
+                 'Panthera tigris'),
+               supertaxa = c(NA, 1, 2, 3, 3))
> x <- c(x, x)

> stems(x)
[[1]]
[1] 1 2

[[2]]
[1] 6 7

> stems(x, value = tax_name(x))
[[1]]
[1] "Carnivora" "Felidae"  

[[2]]
[1] "Carnivora" "Felidae"  

> x
<taxonomy[10]>
1: Carnivora
└─2: Felidae
  └─3: Panthera
    ├─4: Panthera leo
    └─5: Panthera tigris
6: Carnivora
└─7: Felidae
  └─8: Panthera
    ├─9: Panthera leo
    └─10: Panthera tigris

subtaxa(x, subset = NULL, max_depth = NULL, include = FALSE, value = NULL, ...)

返回所有子类群的索引值。

Generate example data

x <- taxonomy(c('Carnivora', 'Felidae', 'Panthera', 'Panthera leo',
'Panthera tigris', 'Ursidae', 'Ursus', 'Ursus arctos'),
supertaxa = c(NA, 1, 2, 3, 3, 1, 6, 7))

The indexes of all subtaxa (with subtaxa of subtaxa, etc) for each taxon

subtaxa(x)

The indexes of immediate subtaxa (without subtaxa of subtaxa, etc) for each taxon

subtaxa(x, max_depth = 1)

Return something other than index

subtaxa(x, value = tax_name(x))

Include each taxon with its subtaxa

subtaxa(x, value = tax_name(x), include = TRUE)

Only return data for some taxa (faster than subsetting the whole result)

subtaxa(x, subset = 3)


supertaxa( x, subset = NULL, max_depth = NULL, include = FALSE, value = NULL, use_na = FALSE, ... )

返回所有父类群的索引值。

Generate example data

x <- taxonomy(c('Carnivora', 'Felidae', 'Panthera', 'Panthera leo',
'Panthera tigris', 'Ursidae', 'Ursus', 'Ursus arctos'),
supertaxa = c(NA, 1, 2, 3, 3, 1, 6, 7))

The indexes of all supertaxa (with supertaxa of supertaxa, etc) for each taxon

supertaxa(x)

Return something other than index

supertaxa(x, value = tax_name(x))

Include each taxon with its supertaxa

supertaxa(x, value = tax_name(x), include = TRUE)

Only return data for some taxa (faster than subsetting the whole result)

supertaxa(x, subset = 3)

相关推荐
蹦蹦跳跳真可爱5899 分钟前
Python----OpenCV(图像分割——彩色图像分割,GrabCut算法分割图像)
开发语言·图像处理·人工智能·python·opencv·计算机视觉
越城24 分钟前
C++类与对象(上)
开发语言·c++
mit6.82435 分钟前
[Nagios Core] struct监控对象 | 配置.cfg加载为内存模型
c语言·开发语言
序属秋秋秋1 小时前
《C++初阶之STL》【泛型编程 + STL简介】
开发语言·c++·笔记·学习
NCHUtianlin1 小时前
JAVA生成PDF(itextpdf)
java·开发语言·pdf
Sylvia-girl6 小时前
Java——抽象类
java·开发语言
Yana.nice8 小时前
Bash函数详解
开发语言·chrome·bash
tomorrow.hello10 小时前
Java并发测试工具
java·开发语言·测试工具
晓131311 小时前
JavaScript加强篇——第四章 日期对象与DOM节点(基础)
开发语言·前端·javascript
老胖闲聊11 小时前
Python I/O 库【输入输出】全面详解
开发语言·python