Speaking Stata: Trimming to taste

dc.creatorCox, Nicholas J.
dc.date2017-04-01T13:59:19Z
dc.date.accessioned2026-07-09T11:01:43Z
dc.descriptionTrimmed means are means calculated after setting aside zero or more values in each tail of a sample distribution. Here we focus on trimming equal numbers in each tail. Such trimmed means define a family or function with mean and median as extreme members and are attractive as simple and easily understood summaries of the general level (location, central tendency) of a variable. This article provides a tutorial review of trimmed means, emphasizing the scope for trimming to varying degrees in describing and exploring data. Detailed remarks are included on the idea’s history, plotting of results, and confidence interval procedures. Examples are given using astronomical and medical data. The new Stata commands trimmean and trimplot are also included.
dc.identifierOther:st0313
dc.identifierdoi:10.22004/ag.econ.249813
dc.identifierhttps://ageconsearch.umn.edu/record/249813/files/sjart_st0313.pdf
dc.identifierhttp://ageconsearch.umn.edu/record/249813
dc.identifier.urihttp://hdl.handle.net/123456789/624162
dc.languageeng
dc.publisher
dc.sourcehttp://ageconsearch.umn.edu/record/249813
dc.titleSpeaking Stata: Trimming to taste
dc.typeText

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