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Package taxlist version 0.2.4
分类层次结构可以设置为 taxlist 对象中的级别,按从低到高的顺序排列。
在 taxlist 对象中为特定分类概念添加分类级别。此外,概念限制的变化可能涉及其分类层次结构的变化。
- levels(x)
-
- ## S3 method for class 'taxlist'
- levels(x)
-
- levels(x) <- value
-
- ## S3 replacement method for class 'taxlist'
- levels(x) <- value
参数【x】:一个 taxlist 对象。
参数【value】:替换值的字符向量。
分类级别将作为 taxlist 对象中的因子进行处理。这些级别对于创建相关组的子集很有用(例如,通过函数 get_children() 或 get_parents())。
与父子关系相结合的级别将进一步用于检查分类列表的一致性。
还实现了表单 levels(x) <- value 的替换方法。
具有添加或修改的分类级别的字符向量或 taxlist 对象。
levels(Easplist)
[1] "form" "variety" "subspecies" "species" "complex" [6] "genus" "family"
- levels(Easplist) <- c("form", "variety", "subspecies", "species", "complex",
- "aggregate", "genus", "family")
- summary(Easplist)
object size: 761.5 Kb validation of 'taxlist' object: TRUE number of taxon usage names: 5393 number of taxon concepts: 3887 trait entries: 311 number of trait variables: 1 taxon views: 3 concepts with parents: 3698 concepts with children: 1343 hierarchical levels: form < variety < subspecies < species < complex < aggregate < genus < family number of concepts in level form: 2 number of concepts in level variety: 95 number of concepts in level subspecies: 71 number of concepts in level species: 2521 number of concepts in level complex: 1 number of concepts in level aggregate: 0 number of concepts in level genus: 1011 number of concepts in level family: 186
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