eapply

0th

Percentile

Apply a Function Over Values in an Environment

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.

This is a primitive function.

Keywords
list, environment, iteration
Usage
eapply(env, FUN, …, all.names = FALSE, USE.NAMES = TRUE)
Arguments
env

environment to be used.

FUN

the function to be applied, found via match.fun. In the case of functions like +, %*%, etc., the function name must be backquoted or quoted.

optional arguments to FUN.

all.names

a logical indicating whether to apply the function to all values.

USE.NAMES

logical indicating whether the resulting list should have names.

Value

A named (unless USE.NAMES = FALSE) list. Note that the order of the components is arbitrary for hashed environments.

See Also

environment, lapply.

Aliases
  • eapply
Examples
library(base) # NOT RUN { 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) # }
Documentation reproduced from package base, version 3.5.2, License: Part of R 3.5.2

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