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From |
Eric Booth <eric.a.booth@gmail.com> |

To |
statalist@hsphsun2.harvard.edu |

Subject |
Re: st: Escaping left quote as argument of parse in split command |

Date |
Tue, 3 Apr 2012 23:29:34 -0500 |

I'm not sure how to get the parse option of -split- to accept the single left quote, but you can get around it by using a function like -subinstr()- to replace the left quote with something else and then -split-, so: ** replace id = subinstr(x, "`", "@", .) split id, parse("@") ** - Eric __ Eric A. Booth Public Policy Research Institute Texas A&M University ebooth@ppri.tamu.edu +979.845.6754 P.S. The part of the split.ado file that is choking is (using trace): - if `"`parse'"' == `""' | `"`parse'"' == `""""' { = if `""`""' == `""' | `""`""' == `""""' { { required In trying to escape the single left quote in -split-, I had a copy/paste error and accidentally ran: split id, parse("\`\`"'') which curiously gave the error: "no room to add more variables Up to 32,000 variables are currently allowed, although you could reset the maximum using set maxvar; see help memory. r(900); t=14.37 23:21:53" Since string functions, like subinstr(), can work with the single left quote, it seems like it should be possible that -split- could work with it as well (I say that without knowing anything about the internal mechanics of the string functions like subinstr()) On Apr 3, 2012, at 10:45 PM, Florian Kuhn wrote: > Hi all, > > in my dataset, I have a string variable “id” in which the left single quote ` is used to separate a first and second part of the id (the creators of the dataset were clearly not using Stata). For example, a typical entry in the column "id" would be 15`32. I am trying to recover both parts of the id as separate variables using the "split" command. > > However, escaping the backtick does not seem to work: > split id, parse("\`") > gives the error message: > { required > r(100); > > Am I missing something obvious here? > Thanks, > Florian > * > * For searches and help try: > * http://www.stata.com/help.cgi?search > * http://www.stata.com/support/statalist/faq > * http://www.ats.ucla.edu/stat/stata/ * * For searches and help try: * http://www.stata.com/help.cgi?search * http://www.stata.com/support/statalist/faq * http://www.ats.ucla.edu/stat/stata/

**Follow-Ups**:**Re: st: Escaping left quote as argument of parse in split command***From:*Nick Cox <njcoxstata@gmail.com>

**References**:**st: Escaping left quote as argument of parse in split command***From:*"Florian Kuhn" <florian@mail.utexas.edu>

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