| eapply | R Documentation |
eapply applies FUN to the named values from an
environment and returns the results as a list. The user
can request that all named objects are used (normally names that begin
with a dot are not). The output is not sorted and no enclosing
environments are searched.
eapply(env, FUN, ..., all.names = FALSE, USE.NAMES = TRUE)
env |
environment to be used. |
FUN |
the function to be applied, found via
|
... |
optional arguments to |
all.names |
a logical indicating whether to apply the function to all values. |
USE.NAMES |
logical indicating whether the resulting list should
have |
A named (unless USE.NAMES = FALSE) list. Note that the order of
the components is arbitrary for hashed environments.
environment, lapply.
require(stats)
env <- new.env(hash = FALSE) # so the order is fixed
env$a <- 1:10
env$beta <- exp(-3:3)
env$logic <- c(TRUE, FALSE, FALSE, TRUE)
# what have we there?
utils::ls.str(env)
# compute the mean for each list element
eapply(env, mean)
unlist(eapply(env, mean, USE.NAMES = FALSE))
# median and quartiles for each element (making use of "..." passing):
eapply(env, quantile, probs = 1:3/4)
eapply(env, quantile)
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