How to extract numbers from numeric object
Question
For example, for numbers 412,34523,123412 I would extract 4,3 and 1. I guess I can turn them into characters, sliced them and then pick the first. Is there any better way?
1 answers
solution1
3 ACCPTED 2019-02-13 15:50:25
Try:
s=c(412,34523,123412)
substring(s,1,1)
[1] "4" "3" "1"
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