RDataTypeUnregister
RDataTypeUnregister[type]
unregisters a data type with the name type from the RLink type system.
更多信息和选项
- The type name type should normally be a string.
- RDataTypeUnregister performs the reverse operation with respect to RDataTypeRegister.
- If the data type with the name type has not been registered or has been already unregistered, RDataTypeUnregister does nothing.
范例
基本范例 (2)
Consider R data frames, which represent one of the extended data types added to core RLink data types through the type extension mechanism. This creates a simple data frame:
Now unregister the data frame type:
Repeating the previous evaluation will now produce a different Mathematica expression, which is a generic RLink representation of an R data frame being interpreted as an R list with attributes:
The previous action, of course, impaired the data frame functionality. To recover previously registered definitions for data frames, you can call RDataTypeDefinitionsReload:
文本
Wolfram Research (2012)，RDataTypeUnregister，Wolfram 语言函数，https://reference.wolfram.com/language/RLink/ref/RDataTypeUnregister.html.
CMS
Wolfram 语言. 2012. "RDataTypeUnregister." Wolfram 语言与系统参考资料中心. Wolfram Research. https://reference.wolfram.com/language/RLink/ref/RDataTypeUnregister.html.
APA
Wolfram 语言. (2012). RDataTypeUnregister. Wolfram 语言与系统参考资料中心. 追溯自 https://reference.wolfram.com/language/RLink/ref/RDataTypeUnregister.html 年