WebNov 18, 2024 · So say I have firm observations for 2010 2011 2012 and 2013 with a missing value for one of the model's variables in 2012. 2012 is excluded from the model, while 2013 is still included. Shouldn't 2013 also be excluded from the regression as it is a non-consecutive (sort of singleton) observation? http://www.asasrms.org/Proceedings/y2010/Files/308112_60089.pdf
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WebMay 15, 2015 · Cross Validated is a question and answer site for people interested in statistics, machine learning, data analysis, data mining, and data visualization. WebNov 16, 2024 · Here we can see that the stratum 1 has a singleton PSU. We perform an estimation with survey data, the problem of stratum with a singleton PSU can arise, even if all strata in the dataset have multiple PSUs. This happens when some observations are dropped because of missing values. Let us look at the following survey data. naydeen babbitt obituary
why are there still singletons even after using dropsingletons? #196
WebJul 14, 2024 · 1.和审稿人argue。观测值数量主要是singleton（大致可以理解为由于虚拟变量过多所导致被完全解释的观测值，在经过匹配的数据里比较常见）的问题，从理论上来说可能对估计有不好的影响。可以引用这篇文章里的一些解释。 2.手动删除singleton。 Web- Singleton observations are dropped iteratively until no more singletons are found (see the linked article for details). - Slope-only absvars ("state#c.time") have poor numerical … WebMar 5, 2024 · These rules can feed each other. For example, after 2 is applied, an observation that was not originally a singleton may become one as a result of its … nayda betancourt