OpsExtract | R Documentation |
Extract parts of a Container
object similar
to R's base extract operators on lists.
## S3 method for class 'Container'
x[...]
## S3 method for class 'Container'
x[[i]]
x |
|
i, ... |
indices specifying elements to extract. Indices
are |
[
selects multiple values. The indices can be numeric
or
character
or both. They can be passed as a vector
or list
or,
for convenience, just as a comma-separated sequence (see Examples).
Non-existing indices are ignored.
[[
selects a single value using a numeric
or character
index.
co = container(a = 1, b = 2, c = 3, d = 4)
co[1:2]
co[1, 4]
co["d", 2]
co[list("d", 2)]
co[0:10]
co = container(a = 1, b = 2)
co[[1]]
co[["a"]]
co[["x"]]
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