How to change memory units format in R? e.g. bytes to megabytes

Question

the question is quite simple but I haven't find any answers on google or in the ?options function of R.

I actually updated my R and RStudio version and since then, each time I use a function such as memory.limit(), the output is given to me as bytes instead of megabytes or gigabytes. This is not a real problem but I find more convenient to read 32 000MB instead of 32000000000 bytes.

I know this is probably in some options but even looking at ?memory.limit it seems there's no units or format as arguments.

As far as coding goes I want (MB) :

memory.limit() 32000

instead of (bytes) :

memory.limit() 32000000000

Please note that I don't want a function converting bytes to megabytes, I simply want to change the print behavior of R in this regard.

Thank you.

Actually, I see different results in RStudio versus running Rgui or R in a terminal. Apparently this is an RStudio bug. — user2554330
– user2554330, Commented Jan 10, 2020 at 22:46
Apparently this has been fixed in recent RStudio builds: see github.com/rstudio/rstudio/issues/4986 — user2554330
– user2554330, Commented Jan 10, 2020 at 22:52
Thanks for the comment, no I'm not looking at a different function, like I said I have 2 computer and the one not updated is getting the ouput I desire. I'll take a look at the link, thanks a lot! — Gainz
– Gainz, Commented Jan 11, 2020 at 23:39

mrhellmann · Accepted Answer · 2020-01-10 17:28:13Z

1

Try using format().

format(memory.limit(), units = "Mb")

Also good to know:

format(thing_to_format, units = 'auto')

answered Jan 10, 2020 at 17:28

mrhellmann

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3 Comments

Gainz Over a year ago

Thank you for your answer. I am actually aware of using the format() function this way but this is not what I am looking for. I simply want to use memory.limit() and have MB or GB has units without having to specify it every time. I don't know why the print behavior of this function changed after the update of R.

mrhellmann Over a year ago

Make your own function. `mem_lim <- function(){format(memory.limit(), units = 'Mb')}

Gainz Over a year ago

Thanks, I know I can do it this way but that's the point, I shouldn't have too. Base R used to do it just fine. On my other computer, it is still working just fine, so I just want to know how to change that back.

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