[R] splitting a string based on the last underscore

[Dimitri Liakhovitski]

Thank you, Jim.
It's close but not all the way. The desired result is:
> [[1]]
> [1] "a1"  "2.5"
>
> [[2]]
> [1] "a2"   "2.53"
>
> [[3]]
> [1] "a3_bla" "1"

Dimitri

On Fri, Jul 29, 2011 at 12:35 PM, jim holtman <jholtman at gmail.com> wrote:
> try this:
>
>> x<-c("name_a1_2.5.o","name_a2_2.53.o","name_a3_bla_1.o")
>> strsplit(sub(".*?([^_]+)_([^-]+).o$", "\\1 \\2", x), ' ')
> [[1]]
> [1] "a1"  "2.5"
>
> [[2]]
> [1] "a2"   "2.53"
>
> [[3]]
> [1] "bla" "1"
>
>>
>
>
> On Fri, Jul 29, 2011 at 12:08 PM, Dimitri Liakhovitski
> <dimitri.liakhovitski at gmail.com> wrote:
>> Hello!
>> Hope you could help me split the strings.
>>
>> I have a set of strings:
>>
>> x<-c("name_a1_2.5.o","name_a2_2.53.o","name_a3_bla_1.o")
>>
>> I need to extract from each string:
>>
>> 1. Its unique part that comes before the last "_", i.e.: "a1","a2","a3_bla".
>> 2. The part that comes after the last "_" and before ".o" at the end,
>> i.e.: 2.5, 2.53, 1.
>>
>> Thank you so much for your help!
>>
>> --
>> Dimitri Liakhovitski
>> marketfusionanalytics.com
>>
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>> and provide commented, minimal, self-contained, reproducible code.
>>
>
>
>
> --
> Jim Holtman
> Data Munger Guru
>
> What is the problem that you are trying to solve?
>



-- 
Dimitri Liakhovitski
marketfusionanalytics.com