R 包版本中的连字符 (`-`)
Hyphen (`-`) in R package versions
我依赖的软件包列出了 4.0.4 以及 0.9-7 甚至 0.9-7.1 等版本。 （参见here）。
包版本控制中的连字符 (-) 是什么意思？如何对其进行版本比较？我找不到这方面的任何文档。
包版本控制中的连字符 (-) 是什么意思？
?numeric_version中提到了连字符：
"Numeric versions are sequences of one or more non-negative integers, usually (e.g., in package 'DESCRIPTION' files) represented as character strings with the elements of the sequence concatenated and separated by single . or - characters. R package versions consist of at least two such integers."
这里不区分句点.和连字符-。然而，正如 Hadley & Brian 在 R Packages; Package metadata - Version:
中指出的
I don’t recommend taking full advantage of R’s flexibility. Instead always use . to separate version numbers.
他们指的是Semantic Versioning, where the use of hyphen is described:
A pre-release version MAY be denoted by appending a hyphen and a series of dot separated identifiers immediately following the patch version.
如何进行版本比较？
我依赖的软件包列出了 4.0.4 以及 0.9-7 甚至 0.9-7.1 等版本。 （参见here）。
包版本控制中的连字符 (-) 是什么意思？如何对其进行版本比较？我找不到这方面的任何文档。
包版本控制中的连字符 (-) 是什么意思？
?numeric_version中提到了连字符：
"Numeric versions are sequences of one or more non-negative integers, usually (e.g., in package '
DESCRIPTION' files) represented as character strings with the elements of the sequence concatenated and separated by single.or-characters. R package versions consist of at least two such integers."
这里不区分句点.和连字符-。然而，正如 Hadley & Brian 在 R Packages; Package metadata - Version:
I don’t recommend taking full advantage of R’s flexibility. Instead always use
.to separate version numbers.
他们指的是Semantic Versioning, where the use of hyphen is described:
A pre-release version MAY be denoted by appending a hyphen and a series of dot separated identifiers immediately following the patch version.
如何进行版本比较？