slice.chMDB | R Documentation |
Subset a chMDB object according to row position in one table and return a memoMDB
## S3 method for class 'chMDB'
slice(.data, ..., by = 10^5, .preserve = FALSE)
.data |
a chMDB object |
... |
a single argument. The name of this argument should be a table name of x and the value of this argument should be vector of integers corresponding to row indexes. |
by |
the size of the batch: number of records to slice together (default: 10^5) |
.preserve |
not used |
a memoMDB object
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