| reorder.default | R Documentation |
reorder is a generic function. The "default" method
treats its first argument as a categorical variable, and reorders its
levels based on the values of a second variable, usually numeric.
reorder(x, ...)
## Default S3 method:
reorder(x, X, FUN = mean, ...,
order = is.ordered(x))
x |
an atomic vector, usually a |
X |
a vector of the same length as |
FUN |
a |
... |
optional: extra arguments supplied to |
order |
logical, whether return value will be an ordered factor rather than a factor. |
This, as relevel(), is a special case of simply calling
factor(x, levels = levels(x)[....]).
A factor or an ordered factor (depending on the value of
order), with the order of the levels determined by
FUN applied to X grouped by x. The
levels are ordered such that the values returned by FUN
are in increasing order. Empty levels will be dropped.
Additionally, the values of FUN applied to the subsets of
X (in the original order of the levels of x) is returned
as the "scores" attribute.
Deepayan Sarkar deepayan.sarkar@r-project.org
reorder.dendrogram, levels,
relevel.
require(graphics)
bymedian <- with(InsectSprays, reorder(spray, count, median))
boxplot(count ~ bymedian, data = InsectSprays,
xlab = "Type of spray", ylab = "Insect count",
main = "InsectSprays data", varwidth = TRUE,
col = "lightgray")
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