List object sizes and types

Source: R/lso.R

lso lists object sizes and types.

lso(
  pos = 1,
  pattern,
  order.by = "Size",
  decreasing = TRUE,
  head = TRUE,
  n = 10
)

Arguments

pos

a number specifying the environment as a position in the search list.
pattern

an optional regular expression. Only names matching pattern are returned. glob2rx can be used to convert wildcard patterns to regular expressions.
order.by

column to sort the list by. Values are "Type", "Size", "Rows", and "Columns".
decreasing

logical. If FALSE, the list is sorted in ascending order.
head

logical. Should output be limited to n lines?
n

if head=TRUE, number of rows should be displayed?

Value

a data.frame with four columns (Type, Size, Rows, Columns) and object names as row names.

Details

This function list the sizes and types of all objects in an environment. By default, the list describes the objects in the current environment, presented in descending order by object size and reported in megabytes (Mb).

References

http://stackoverflow.com/questions/1189759/expert-r-users-whats-in-your-rprofile.

Author

Based on based on postings by Petr Pikal and David Hinds to the r-help list in 2004 and modified Dirk Eddelbuettel, Patrick McCann, and Rob Kabacoff.

Examples

data(cardata)
data(cars74)
lso()

#>               Type  Size_Mb  Rows Columns
#> cardata data.frame 0.843056 11914      16
#> heart   data.frame 0.025320   303      14
#> cars74  data.frame 0.009856    32      12