The function `zinb_analysis_tool` requires users to define the vaccines of interest and which vaccines are merged in to one vaccine type. Here is an example of how to specify the parameter `merge_list` in that function.
merge_list
An object of class list
of length 10.
The `merge_list` should be a list of length i. An element of `merge_list` should be a list of length 2, with the first element to be an vector string containing one or several vaccine names, and the second element to be a single string of vaccine type.
For example, an element of `merge_list` could be `list(c('FLUN3', 'FLUN4'),'FLUN')`, meaning to merge FLUN3 and FLUN4 into one vaccine type FLUN.