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...staven ++?) > c(?leucocyten ??, ?grampositieve coccen +?) > ? > I have tried strsplit with a regular expression with a positive > lookahead, but I am not able to achieve the results that I want. It sounds like you need positive look-behind, not look-ahead: split on spaces only if they _follow_ one to three of '+' or '-'. Unfortunately, repetition quantifiers like {n,m} or + are not directly supported in look-behind expressions (nor in Perl itself). As a special case, you can use \K, where anything to the left of \K is a zero-width positive match: x <- c( 'leucocy...

Hello List, ? I have a dataset consisting of strings that I want to split while saving the delimiter. ? Some example data: ?leucocyten + gramnegatieve staven +++ grampositieve staven ++? ?leucocyten ? grampositieve coccen +? ? I want to split the strings such that I get the following result: c(?leucocyten +?, ??gramnegatieve staven +++?, ??grampositieve staven ++?) c(?leucocyten ??, ?grampositieve

Not only is [Markdown] dead, it's starting to smell really bad. (Apologies to Pike.) It's author appears to have little interest in developing the tool and participating in the community which uses it. I'd like to see the community cooperate toward a specification which addresses the shortcomings and ambiguities of Markdown (even if it need be released under a new name).

Thank you very much. After that I have the following error: cols<- c("GrMM", "RELG", "CASTE1", "SECTOR", "SECTOR4","AGE", "MARITAL", "JOBSTATUS", "ENG", "EDU", "PARENT_EDU", "MASSMEDIA_F", "MASSMEDIA_M", "HomeComputer", "HomeInternet") > for

You are missing a comma between "MARITAL" and "JOBSTATUS". On Tue, Apr 10, 2018 at 10:27 AM, Saif Tauheed <saif.tauheed at gmail.com> wrote: > I run this command for converting the numerical variable into factor. > However, I get the following error message. > > > cols<- c(?GrMM", "RELG", "CASTE1", "SECTOR",