Recycled aggregates, where an aggregate is repeated to match the length of the input. You won’t find them in base R or in dplyr, but there are many implementations in other packages, such as RcppRoll. Rolling aggregates operate in a fixed width window. The other three families are variations on familiar aggregate functions:Ĭumulative aggregates: cumsum(), cummin(), cummax() (from base R), and cumall(), cumany(), and cummean() (from dplyr). Offsets lead() and lag() allow you to access the previous and next values in a vector, making it easy to compute differences and trends. These functions all take a vector to order by, and return various types of ranks. Ranking and ordering functions: row_number(), min_rank(), dense_rank(), cume_dist(), percent_rank(), and ntile().
Two families are unrelated to aggregation functions: Recipients are sure to appreciate and use these helpful organization gifts for years to come.There are five main families of window functions. Useful gifts that help customers get organized at home and work are a fantastic way to stand out as a thoughtful brand. These useful gifts help keep vitamins and medicines from being lost or forgotten. And everyone will appreciate a compartment box or pill box. Or go for a stylish cosmetic bag, which is great on the road or at home. Perfect as a gift for conferences and tradeshows, folding utility totes keep toiletries neatly in place. Keep these containers on-hand to use as thank-you gifts or contest prizes. Small and aesthetic, a Ceramic Container with Bamboo Lid is a unique giveaway idea nice enough to display on coffee table or entertainment center. If you need something a little larger, a Buffalo Plaid Utility Tote is just the right size for stowing small blankets, toys and games. Looking to stand out to a potential client? Provide a functional storage bin perfect for storing sewing supplies, magazines or other items. Give as a functional holiday gift that recipients can use all year long. Bento boxes keep lunch foods fresh and separated. Kitchen organization can apply to food too. Whether flipping fried eggs or serving casseroles, this useful gift keeps multiple utensils in one handy place. It works great as a trade show giveaway.Ī bamboo kitchen tool set is an attractive leave-behind that recipients can use every day. A Colourful Measuring Set keeps measuring cups from being scattered or lost. Have employees or customers who love to cook? Help them keep everything they need within reach with unique kitchen giveaway ideas.
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