نتایج جستجو برای: sebaceous nevus
تعداد نتایج: 16467 فیلتر نتایج به سال:
In a previous article in this series, we explained correlation analysis which describes the strength of relationship between two continuous variables. In this article, we deal with linear regression analysis which predicts the value of one continuous variable from another. We also discuss the assumptions and pitfalls associated with this analysis.
Regression is one of the favorite tools in applied statistics. However, misuse and misinterpretation of results from regression analysis are common in biomedical research. In this paper we use statistical theory and simulation studies to clarify some paradoxes around this popular statistical method. In particular, we show that a widely used model selection procedure employed in many publication...
Increases in the association between spouses' earnings have the potential to increase inequality as marriages increasingly consist of two high-earning or two low-earning partners. This article uses log-linear models and data from the March Current Population Survey to describe trends in the association between spouses' earnings and estimate their contribution to growing earnings inequality amon...
Wind-hydrothermal power system dispatching has received intensive attention in recent years because it can help develop various reasonable plans to schedule the power generation efficiency. But future data such as wind power output and power load would not be accurately predicted and the nonlinear nature involved in the complex multiobjective scheduling model; therefore, to achieve accurate sol...
In dementia screening tests, item selection for shortening an existing screening test can be achieved using multiple logistic regression. However, maximum likelihood estimates for such logistic regression models often experience serious bias or even non-existence because of separation and multicollinearity problems resulting from a large number of highly correlated items. Firth (1993, Biometrik...
Figure 1. Hairless scalp vertex lesion present since birth that has been slowly enlarging.
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