Dear Ana
Would it not be possible to use grep instead of grepl and get the values
using the value = TRUE parameter?
Michael
On 10/04/2020 17:15, Ana Marija wrote:
Hello,
Hello,
I have a data frame (tot) with about 2000 columns. How can I extract
from it all strings that start with E14?
I tried this:
e14 <- sapply(tot, function(x) grepl("^E14", x))
but this returns me just TRUE and FALSE vector, how do I get actual
strings that start with E14?
Thanks
Ana
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Michael
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