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resid;
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``` |
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```
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# Changes related to the `mh_jscale`-option of `estimation`
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The default value of `mh_jscale` is now `2.38^2/npar`, where `npar` denotes the number of estimated parameters, instead of a fixed `0.2`. The new value corresponds to the optimal value for a Gaussian symmetric random walk Metropolis-Hastings (Gelman et al. 1995). Particularly for big models, the new default value should perform better.
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At the same time, the `mh_init_scale`-option has become deprecated. Use the new `mh_init_scale_factor`-option to govern the overdispersion of the starting values for multiple MCMC chains. This option specifies the multiple of `mh_jscale` to be used. |
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