[R] filter a data.frame in dependence of a column value

[Thierry Onkelinx]

Dear Mat,

You can use grepl() to select based on are regular expression.

subset(data3, grepl("\\(.*\\)", ORDER))

Best regards,

ir. Thierry Onkelinx
Instituut voor natuur- en bosonderzoek / Research Institute for Nature and
Forest
team Biometrie & Kwaliteitszorg / team Biometrics & Quality Assurance
Kliniekstraat 25
1070 Anderlecht
Belgium

To call in the statistician after the experiment is done may be no more
than asking him to perform a post-mortem examination: he may be able to say
what the experiment died of. ~ Sir Ronald Aylmer Fisher
The plural of anecdote is not data. ~ Roger Brinner
The combination of some data and an aching desire for an answer does not
ensure that a reasonable answer can be extracted from a given body of data.
~ John Tukey

2016-06-17 9:49 GMT+02:00 Matthias Weber <Matthias.Weber op fntsoftware.com>:

> Hello togehter,
>
> i have short question, maybe anyone can help me.
>
> I have a data.frame like this one:
>
>        NO       ORDER
> 1     1530     for Mr. Muller (10.0 -> 11.2)
> 2     1799     for Mr Giulani
> 3     1888     for Mr. Marius (11.2 -> 12)
>
> I need a solution, which only contains the values in brackets. The result
> should look like the following:
>
>        NO       ORDER
> 1     1530     for Mr. Muller (10.0 -> 11.2)
> 2     1888     for Mr. Marius (11.2 -> 12)
>
> I tried it with the following code, but that doesn't work.
>
> data4.1<-data3[data3$ORDER%in% "[(]*->*[)]",]
>
> maybe anyone can help me.
>
> Thank you.
>
> Best regards
>
> Mat
>
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>
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