Description Usage Arguments Details Value Author(s) See Also Examples
Returns order with regard to one or more ff vectors
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... |
one of more ff vectors which define the order |
index |
an optional ff integer vector used to store the order output |
use.index |
A boolean flag telling fforder whether to use the positions in 'index' as input. If you do this, it is your responsibility to assure legal positions - otherwise you risk a crash. |
aux |
An optional named list of ff vectors that can be used for temporary copying
– the names of the list identify the |
auxindex |
An optional ff intger vector for temporary storage of integer positions. |
has.na |
boolean scalar telling fforder whether the vector might contain |
na.last |
boolean scalar telling fforder whether to order |
decreasing |
boolean scalar telling fforder whether to order increasing or decreasing |
BATCHBYTES |
maximum number of RAM bytes fforder should try not to exceed |
VERBOSE |
cat some info about the ordering |
fforder tries to order the vector in-RAM, if not possible it uses (a yet simple) out-of-memory algorithm.
Like ramorder
the in-RAM ordering method is choosen depending on context information.
An ff vector with the positions that ore required to sort the input as specified
– with an attribute na.count
with as many values as columns in ...
Jens Oehlschlägel
ramorder
, ffsort
, ffdforder
, ffindexget
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