Working with Time Series DataOverviewTime Series and SAS Data SetsDating ObservationsSubsetting Data and Selecting ObservationsStoring Time Series in a SAS Data SetTime Series Periodicity and Time IntervalsPlotting Time SeriesCalendar and Time FunctionsInterval Functions INTNX and INTCKLags, Leads, Differences, and SummationsTransforming Time SeriesManipulating Time Series Data SetsTime Series InterpolationReading Time Series DataCopyright © SAS Institute Inc. All rights reserved.