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split_str
2008 Feb 07
1
How to split a factor (unique identifier) into several others?
...e separate factor columns "sample",
"condition" and "place".
This is what I did so far:
# generate a factor column for the example
fctr<- factor(c("sample1_condition1_place1",
"sample2_condition1_place1", "sample3_condition1_place1"))
splitfctr <- strsplit(as.character(fctr),"_")
> splitfctr
[[1]]
[1] "sample1" "condition1" "place1"
[[2]]
[1] "sample2" "condition1" "place1"
[[3]]
[1] "sample3" "condition1" "place1"
Now t...