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Using R now, and my memory is almost full(gc() applied already). Is there a way to know each variables' memory consumption so that I know which one takes the most memory and remove that one.
934
R uses more memory probably because of some copying of objects. Although these temporary copies get deleted, R still occupies the space. To give this memory back to the OS you can call the gc function. However, when the memory is needed, gc is called automatically.
Neither of those things are true! Those 40 bytes are used to store four components possessed by every object in R: Object metadata (4 bytes). These metadata store the base type (e.g. integer) and information used for debugging and memory management.
You can force R to perform this check, and free the memory right away, by running the gc() command in R or going to Tools -> Memory -> Free Unused R Memory.
Details. A call of gc causes a garbage collection to take place. This will also take place automatically without user intervention, and the primary purpose of calling gc is for the report on memory usage. For an accurate report full = TRUE should be used.
Yes there is, try:
object.size()
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