R/ObjectSize.R

In pandeymanishh/baseRCodes:

##---------------------------Object Size--------------------------------------------------##
# improved list of objects
.ls.objects <- function (pos = 1, pattern, order.by,decreasing=FALSE, head=FALSE, n=5) {
	napply <- function(names, fn) sapply(names, function(x) fn(get(x, pos = pos))) 
	names <- ls(pos = pos, pattern = pattern)
	obj.class <- napply(names, function(x) as.character(class(x))[1])
	obj.mode <- napply(names, mode) 
	obj.type <- ifelse(is.na(obj.class), obj.mode, obj.class) 
	obj.prettysize <- napply(names, function(x) {capture.output(format(utils::object.size(x), units = "auto")) }) 
	obj.size <- napply(names, object.size)
	obj.dim <- t(napply(names, function(x)as.numeric(dim(x))[1:2])) 
	vec <- is.na(obj.dim)[, 1] & (obj.type != "function")
	obj.dim[vec, 1] <- napply(names, length)[vec] 
	out <- data.frame(obj.type, obj.size, obj.prettysize, obj.dim)
	names(out) <- c("Type", "Size", "PrettySize", "Rows", "Columns")
	if (!missing(order.by)) out <- out[order(out[[order.by]], decreasing=decreasing), ]
	if (head) out <- head(out, n) 
	out
	}
			
						
# shorthand
lsos <- function(..., n=10) { .ls.objects(..., order.by="Size", decreasing=TRUE, head=TRUE, n=n)}