This function applies a CrunchLogicalExpression filter to a
CrunchDataset. It's a "tidy" way of doing ds[ds$var == val,].
Usage
# S3 method for CrunchDataset
filter(.data, ..., .preserve = FALSE)
Arguments
.data
A CrunchDataset
...
filter expressions
.preserve
Relevant when the .data input is grouped. If
.presrve = FALSE (the default), the grouping structure is recalculated
based on the resulting data, otherwise the grouping is kept as is.