%land%                  Land a value to variable from a pipeline.
gapply                  grouped ordered apply
letp                    Wrap expr for 'magrittr' pipeline execution
                        with name substitutions specified in alias.
replyr                  replyr: Fluid Use of Big Data in R
replyr_arrange          arrange by a single column
replyr_bind_rows        bind a list of items by rows (can't use
                        dplyr::bind_rows or dplyr::combine on remote
                        sources)
replyr_check_ranks      confirm data has good ranked groups
replyr_coalesce         Augment a data frame by adding additional rows.
replyr_colClasses       Get column classes.
replyr_copy_from        Bring remote data back as a local data frame
                        tbl.
replyr_copy_to          Copy data to remote service.
replyr_dataServiceName
                        return a cannonical name of the data service
                        hosting a given data object
replyr_dim              Compute dimensions of a tbl.
replyr_drop_table_name
                        Drop a table from a source
replyr_filter           Filter a tbl on a column having values in a
                        given set.
replyr_group_by         group_by by a single column
replyr_inTest           Product a column noting if another columns
                        values are in a given set.
replyr_mapRestrictCols
                        Map names of columns to known values and drop
                        other columns.
replyr_moveValuesToColumns
                        Spread values found in rowKeyColumns row groups
                        as new columns (experimental, not fully tested
                        on multiple data suppliers).
replyr_moveValuesToRows
                        Collect values found in columnsToTakeFrom as
                        tuples (experimental, not fully tested on
                        multiple data suppliers).
replyr_nrow             Compute number of rows of a tbl.
replyr_quantile         Compute quantiles on remote column (NA's
                        filtered out).
replyr_quantilec        Compute quantiles on remote column (NA's
                        filtered out) using cumsum.
replyr_rename           Rename a column
replyr_select           select columns
replyr_split            split a data item by values in a column.
replyr_str              Show structure of table.
replyr_summary          Compute usable summary of columns of tbl.
replyr_testCols         Run test on columns.
replyr_uniqueValues     Compute number of unique values for each level
                        in a column.
