# The metafor Package

A Meta-Analysis Package for R

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tips:models_with_or_without_intercept

# Differences

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 tips:models_with_or_without_intercept [2020/10/31 08:46]Wolfgang Viechtbauer tips:models_with_or_without_intercept [2021/02/12 15:53]Wolfgang Viechtbauer Both sides previous revision Previous revision 2021/02/12 16:09 Wolfgang Viechtbauer 2021/02/12 15:53 Wolfgang Viechtbauer 2020/10/31 08:46 Wolfgang Viechtbauer 2020/03/19 14:25 Wolfgang Viechtbauer [Models with Continuous Moderators] 2020/03/19 14:22 Wolfgang Viechtbauer 2019/06/30 11:43 external edit 2021/02/12 16:09 Wolfgang Viechtbauer 2021/02/12 15:53 Wolfgang Viechtbauer 2020/10/31 08:46 Wolfgang Viechtbauer 2020/03/19 14:25 Wolfgang Viechtbauer [Models with Continuous Moderators] 2020/03/19 14:22 Wolfgang Viechtbauer 2019/06/30 11:43 external edit Last revision Both sides next revision Line 245: Line 245: ==== Parameterization ==== ==== Parameterization ==== - What the example above shows is that, whether we remove the intercept or not, we are essentially fitting the same model, but using a different [[wp>Parametrization_(geometry)|parameterization]]. The Wikipedia page linked to here discusses the idea of parameterization in the context of geometry, but this is directly relevant, since fundamentally the process of fitting (meta)-regression models can also be conceptualized geometrically (involving projections and vector spaces). An excellent (but quite technical) reference for this perspective is Christensen (2011). + What the example above shows is that, whether we remove the intercept or not, we are essentially fitting the same model, but using a different [[wp>Parametrization_(geometry)|parameterization]]. The Wikipedia page linked to here discusses the idea of parameterization in the context of geometry, but this is directly relevant, since fundamentally the process of fitting (meta)-regression models can also be conceptualized geometrically (involving projections and vector spaces). An excellent (but quite technical) reference for this perspective (on regression models in general) is Christensen (2011). ==== Models with Continuous Moderators ==== ==== Models with Continuous Moderators ====
tips/models_with_or_without_intercept.txt · Last modified: 2021/02/12 16:09 by Wolfgang Viechtbauer