This is an S3 method for dplyr::rowwise that ensures
planktonr_dat attributes are preserved and the object correctly
becomes a rowwise_df while retaining its planktonr_dat class.
# S3 method for class 'planktonr_dat'
rowwise(data, ..., .rows = NULL)A planktonr_dat object.
<data-masking> Columns to group by.
rowwise() groups by all columns by default.
Not currently used by dplyr::rowwise(), but included for
compatibility with future dplyr updates.
A planktonr_dat object that is also a rowwise_df,
preserving original attributes.