Description Usage Arguments Value Examples
Use filter()
to choose rows/cases where conditions are true. Unlike
base subsetting with [
, rows where the condition evaluates to NA
are
dropped.
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.data |
A FDF. |
... |
Logical predicates defined in terms of the variables in The arguments in |
subset |
Integer vector to (further) subset |
check |
Whether to check |
.preserve |
when |
An object of the same class as .data
.
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