rxMakeRNodeNames: Converts valid computer names into valid R variable names.

Article
07/15/2019

Description

Converts valid computer names into valid R variable names. Should only be used when you want to guarantee that host names are usable as variable names.

Usage

  rxMakeRNodeNames( nodeNames )

Arguments

`nodeNames`

character vector of node names to be converted.

Details

rxMakeRNodeNames will preform the following transformations on each element of the character vector passed:

1 Perform toupper on the name.

1 Remove all white space from the name.

1 If one exists, removes the first dot and all characters following it from the name. (This has the effect of stripping the domain name off, if one exists.)

1 Changes any '-' (dash) characters to '_' (underscore) characters so that node names used as variables do not have to be quoted.

The names returned by this function are valid R names, that is, symbols, but they may no longer be valid computer node names. Do not use these names, or this function, in any context where the name may be used to query or control the actual computer; use the original computer name for that. This function is intended to be used only to generate R variable names for processing or storing distributed computing results from the associated computer. Note also that once a host name has been converted into a guaranteed acceptable R variable name, it is impossible to guarantee the reverse conversion.

Author(s)

Microsoft Corporation Microsoft Technical Support

Examples


 ## Not run:

rxMakeRNodeNames(rxGetNodes(myCluster))
rxMakeRNodeNames( c("cluster-head","worker1.foo.edu") )
## End(Not run)

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