Nothing
env <- function(unit="KB", digits=0)
{
get.object.size <- function(object.name, pos)
{
object <- get(object.name, pos=pos)
size <- try(unclass(object.size(object)), silent=TRUE)
if(class(size) == "try-error")
size <- 0
return(size)
}
get.environment.size <- function(pos)
{
if(search()[pos]=="Autoloads" || length(ls(pos,all.names=TRUE))==0)
size <- 0
else
size <- sum(sapply(ls(pos,all.names=TRUE), get.object.size, pos=pos))
return(size)
}
get.environment.nobjects <- function(pos)
{
nobjects <- length(ls(pos,all.names=TRUE))
return(nobjects)
}
unit <- match.arg(unit, c("bytes","KB","MB"))
denominator <- switch(unit, "KB"=1024, "MB"=1024^2, 1)
size.vector <- sapply(seq(along=search()), get.environment.size)
size.vector <- round(size.vector/denominator, digits)
nobjects.vector <- sapply(seq(along=search()), get.environment.nobjects)
env.frame <- data.frame(search(), nobjects.vector, size.vector)
names(env.frame) <- c("Environment", "Objects", unit)
print(env.frame, right=FALSE)
invisible(env.frame)
}
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