[R-meta] New major version of R package netmeta available on CRAN

[Guido Schwarzer]

Hi all,

one more announcement, this time concerning netmeta, version 2.0-0.

The most significant changes are

- switch of behaviour of print and print.summary functions (to be in 
line with other print and print.summary functions in R),

- by default, reference group is defined by first treatment in network 
meta-analysis,

- restricted maximum likelihood and maximum likelihood estimator for 
between-study heterogeneity implemented by calling rma.mv() from R 
package metafor internally,

- rankograms and Surface under the cumulative ranking (SUCRA) can be 
calculated using resampling methods,

- two methods to estimate network contributions implemented,

- calculation of standardised mean differences and corresponding 
standard errors in pairwise() is based on Crippa & Orsini (2016), BMC 
Med Res Meth, equations (4) and (5), providing consistent treatment 
estimates and standard errors for multi-arm studies,

- renamed arguments ('fixed', 'random', 'level.ma' instead of 
'comb.fixed', 'comb.random', 'level.comb').

The old argument names still work but will result in a warning.

More details on the changes are available at 
https://www.researchgate.net/project/Implementation-of-statistical-methods-for-meta-analysis-in-R 
.

New readers of "Meta-Analysis with R (Use R!)" should install a legacy 
version of netmeta: https://tinyurl.com/kyz6wjbb

Best, Guido