Hello,
I am trying to create a matrix that looks like this, using the
stri_locate_all function.
> x <- "ABCDJAKSLABCDAKJSABCD"
> m <- stri_locate_all_regex(x, 'ABCD')
> m
[[1]]
start end
[1,] 1 4
[2,]10 13
[3,]18 21
I tried converting m into a
Hi guys,
Suppose I have an extremely large data frame with 2 columns and .5 mil
rows. For example, the last 6 rows may look like this:
.
..
...
89 100
93 120
95 125
101NA
115NA
123NA
124NA
I would like to manipulate this data frame to output
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