Description Usage Arguments Value Author(s) References Examples
beg2char
- Grab from beginning of string to a character(s).
char2end
- Grab from character(s) to end of string.
1 2 3 |
text.var, |
A character string |
char |
The character from which to grab until/from. |
noc |
Number of times the character appears before the grab. |
include |
logical. If |
returns a vector of text with char on/forward removed.
Josh O'Brien, Justin Haynes and Tyler Rinker <tyler.rinker@gmail.com>.
https://stackoverflow.com/q/15909626/1000343
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 | ## Not run:
x <- c("a_b_c_d", "1_2_3_4", "<_?_._:")
beg2char(x, "_")
beg2char(x, "_", 2)
beg2char(x, "_", 3)
beg2char(x, "_", 4)
beg2char(x, "_", 3, include=TRUE)
char2end(x, "_")
char2end(x, "_", 2)
char2end(x, "_", 3)
char2end(x, "_", 4)
char2end(x, "_", 3, include=TRUE)
x2 <- gsub("_", " ", x)
char2end(x2, " ", 2)
beg2char(x2, " ", 2)
x3 <- gsub("_", "\\^", x)
char2end(x3, "^", 2)
beg2char(x3, "^", 2)
## End(Not run)
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