Likelihood ratio test
Likelihood ratio test between two or more fitted multi-state models
lrtest.msm(...)
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Two or more fitted multi-state models, as returned by
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A matrix with three columns, giving the likelihood ratio statistic, difference in degrees of freedom and the chi-squared p-value for a comparison of the first model supplied with each subsequent model.
The comparison between models will only be valid if they are fitted to the same dataset. This may be a problem if there are missing values and R's default of 'na.action = na.omit' is used.
The likelihood ratio statistic only has the indicated chi-squared
distribution if the models are nested. An alternative for comparing
non-nested models is Akaike's information criterion. This can be
computed for one or more fitted msm models x,y,... using
AIC(x,y,...).
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