On Feb 9, 2010, at 6:46 PM, Martin Batholdy wrote:
hi,
I have a vector full of strings like;
xy_100_ab xy_101_ab xy_102_ab xy_103_ab
I want to seperate each string in three pieces and the separator
should be the "_"
at the end I want a data.frame like:
column1 column2 column3
xy 100 ab
xy 101 ab
xy 102 ab
xy 103 ab
There are probably easier ways but this works:
> as.data.frame( t(sapply(1:4, function(x) strsplit(vec, "_")[[x]])) )
V1 V2 V3
1 xy 100 ab
2 xy 101 ab
3 xy 102 ab
4 xy 103 ab
I needed to transpose the matrix that resulted from the "sideways
presentation" of the data.
I tried strsplit but I couldn't figure out how to convert the list I
get into a data.frame.
I just need a function like read.table. But it seems that read.table
only can handle files, not vectors...
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