Description Usage Arguments Details Value Author(s) See Also Examples
View source: R/methods-aggregator.R
Given an environment and an aggregator (an object of class aggregate
simple aggregations are made.
1 | Aggregate(x, agg)
|
x |
The data to be aggregated. |
agg |
The aggregator to be used. |
Given some data, x
the user can accumulate (or aggregate)
information in env
using the two supplied functions.
See the accompanying documentation for a more complete example of this
function and its use.
No value is returned. This function is evaluated purely for side
effects. The symbols and values in env
are altered.
R. Gentleman
1 2 3 4 5 6 7 8 9 10 | agg1 <- new("aggregator")
Aggregate(letters[1:10], agg1)
# the first 10 letters should be symbols in env1 with values of 1
Aggregate(letters[5:11], agg1)
# now letters[5:10] should have value 2
bb <- mget(letters[1:11], env=aggenv(agg1), ifnotfound=NA)
t1 <- as.numeric(bb); names(t1) <- names(bb)
t1
# a b c d e f g h i j k
# 1 1 1 1 2 2 2 2 2 2 1
|
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