How to find size of an object in R?

This recipe helps you find size of an object in R

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Recipe Objective

A solid understanding of memory management in any programming language is crucial to accurately predict the memory required for a given task as well as to make the most of the memory we have. Additionally, it also helps us execute our code faster by avoiding duplication in memory space.

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In this recipe, you will learn how to find the size of an object in or how much memory an object occupies in R. ​

STEP 1: Creating a list object

Creating a heterogenous list

z = list(1:5,"a10")

STEP 2:Finding the size of an R object (list)

We will use built-in function object.size() to carry out this task. This function just gives you an estimation of the memory that is stored.

Syntax: object.size(x, units = )

Where:

  1. x = an R object
  2. units = (optional) units to be used for formatting and printing the size

object.size(z) 

256 bytes

Note:

  1. The calculation is only of the size of the object and does not include the space required to store it's name.
  2. 64-bits build have larger object sizes than 32-bits one.

​

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