[R] Error because of large dimension
Henrik Bengtsson
henrik.bengtsson at gmail.com
Sun Jan 24 22:29:31 CET 2016
FYI, the matrix you tried to allocate would hold
(3195*1290*495*35*35*35*15) * 3 = 3.936248e+15 values. Each value
would occupy 8 bytes of memory (for the double data type). In other
words, in order to keep this data matrix in memory you would require a
computer with at least 3.148998e+16 bytes of RAM, i.e. 29327331 GiB =
28640 TiB = 28 PiB. Storing such a large matrix even on file is not
possible.
In other words, you need to figure out how to approach your original
problem in a different way.
/Henrik
On Sun, Jan 24, 2016 at 8:46 AM, li li <hannah.hlx at gmail.com> wrote:
> Hi all,
> I am doing some calculation with very large dimension. I need to create a
> matrix
> with three columns and a very large number of rows
> (3195*1290*495*35*35*35*15=1.312083e+15) i
> n order to allocate calculation result from a for loop.
> R does not allow me to create such a matrix because of the large dimension
> (see below). Is there a way to go around this?
> Thanks very much!!
> Hanna
>
>
>> matrix(0, 3195*1290*495*35*35*35*15, 3)
> Error in matrix(0, 3195 * 1290 * 495 * 35 * 35 * 35 * 15, 3) :
> invalid 'nrow' value (too large or NA)
> In addition: Warning message:
> In matrix(0, 3195 * 1290 * 495 * 35 * 35 * 35 * 15, 3) :
> NAs introduced by coercion
>>
>
> [[alternative HTML version deleted]]
>
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