[R] Breaking down a list into a table

Ferri Leberl ferri.leberl at gmx.at
Wed Nov 30 16:18:19 CET 2016

Thank to Ulrik for the hint.
However, I don't comprehend the function until now:

For example I made up an array "input":

[1,] "w;d;e;f"
[2,] "w;d;e;f"
[3,] "w;d;e;f"
[4,] "w;d;e;f"
[5,] "w;d;e;f"

and tried to break it into four cols with commmand:


R returned:

Fehler in UseMethod("separate_") : 
  nicht anwendbare Methode für 'separate_' auf Objekt der Klasse "c('matrix', 'character')" angewendet

Could you please explain me my mistake?

Thank you in advance!

Yours, Ferri


Gesendet: Dienstag, 22. November 2016 um 14:57 Uhr
Von: "Ulrik Stervbo" <ulrik.stervbo at gmail.com>
An: "Ferri Leberl" <ferri.leberl at gmx.at>, "r-helpr-project.org" <r-help at r-project.org>
Betreff: Re: [R] Breaking down a list into a table

Hi Ferri,
 It sounds like the function 'separate' from the tidyr package is what you look for,

On Tue, 22 Nov 2016 at 14:49 Ferri Leberl <ferri.leberl at gmx.at[mailto:ferri.leberl at gmx.at]> wrote:

Dear All,
I asked for support to deal with a hirarchy within a character separated list.
I solved the problem crudely but effectively by

- Choosing for a TSV as input, where in columns that may contain several (or as well no) items the items are separated via semicolon
- adding semicolons to the first row to grant that the first row has the maximum number of semicolons of this column
- grasping the column(x<-myarray[,y], where y is some integer value) and saving it as a TSV (with only one column)
- importing it again, defining it semicolumn-separated, with fill option

To all those who feel pain reading this: Is there a shortcut?
Thank you in advance.
Yours, Ferri

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