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Hi, I am using the clusters function in the evd package and was wondering if anyone knew how to set the row names as date/time objects. My data has 1 column of date and time and another of wave height (H). My two options are: 1 - When in import the data using read.table make sure that the row.names is set = 1 giving row names to the H data. 2 - Import H from the data file and set the row names