E Sửa chữa & Cập nhật
Last updated: 20 March, 2022.
Chapter 4.2
A new version of {meta} (version 5.0-0) has recently been released. We adapted the code in this chapter accordingly to avoid deprecation messages:
The
comb.fixed
andcomb.random
arguments are now calledfixed
andrandom
, respectively.To print all studies, one now has to use
summary
method for {meta} meta-analysis objects.
Chapter 7.3
A new version of {meta} (version 5.0-0) has recently been released. We adapted the code in this chapter accordingly to avoid deprecation messages:
The
byvar
argument is now calledsubgroup
.To print all studies, one now has to use
summary
method for {meta} meta-analysis objects.
Chapter 12.2.1
The print version contains a factual error concerning the definition of full rank in non-square (rectangular) matrices. It is stated that a “matrix is not of full rank when its rows are not all independent”. This, however, only applies to square matrices and non-square matrices with less rows than columns (\(m < n\)). In our example, there are more rows than columns; this means that \(\boldsymbol{X}\) is not full rank because its columns are not all independent (in \(m > n\) matrices, rows are always linearly dependent). This erratum has been corrected in the online version.
Chapter 12.2.2
A new version of {netmeta} (version 2.0-0) has recently been released. We adapted the code in this chapter accordingly to avoid error messages:
- The latest version of {netmeta} resulted in non-convergence of the Fisher scoring algorithm implemented in
rma.mv
. This problem pertains to all versions of {dmetar} installed before 24-Oct-2021. To avoid the issue, simply reinstall the lastest version of {dmetar}.