Description Usage Arguments Value string detection to and eyecode arguments numeric coding See Also Examples
recoding eyes to "r" and "l"
1 |
x |
vector of strings |
to |
named vector to which eye codes. If unnamed, this order: c(r, l, b) |
eyestrings |
named list of substrings which should be converted to right and left eyes - if passed unnamed, this order: list(r, l, b) |
dropunknown |
introduces NA for values that are not part of eyestrings |
Character vector
recodeye will automatically detect the following strings: right = c("r", "re", "od", "right"), left = c("l", "le", "os", "left"), both = c("b","both","ou")
You can change this with set_eye_strings
If passed, should ideally be of same length, and have the respective eyes at the same index (or with the same name!). If the lengths are not equal, e.g., if only "to" is passed with n elements, the shorter argument will be will be cut down to the first n elements of the longer argument.
Note that all unique strings which are part of the column should be contained in the "eyecode" argument.
Currently numeric coding only accepts binary coding (right and left eye). In order to use numeric coding for "both eyes" as well, a workaround using the eyestrings argument is suggested.
Other string matching functions:
getElem
,
sort_substr()
,
str_search
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 | x <- c("r", "re", "od", "right", "l", "le", "os", "left", "both", "ou")
recodeye(x)
## chose the resulting codes
recodeye(x, to = c("od", "os", "ou"))
x <- 1:2
recodeye(x)
## If you code your eyes with different strings,
## e.g., because you are using a different language,
## you can change this either with the eyestrings argument,
french <- c("OD", "droit", "gauche", "OG")
recodeye(french, eyestrings = list(r = c("droit", "od"), l = c("gauche", "og")))
## or change it more globally with `set_eye_strings`
set_eye_strings(right = c("droit", "od"), left = c("gauche", "og"))
recodeye(french)
## restore defaults with
set_eye_strings()
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