A function to filter ggtree plot data using conditions defined by '...'.
Arguments
...
Expressions that return a logical value.
.f
a function (if any, defaults to NULL) that pre-operate the data
Author
Guangchuang Yu
Details
The 'td_filter()' function returns another function that can be
used to subset ggtree() plot data. The function can be passed to the 'data' parameter
of geom layer to perform subsetting. All rows that satisy your conditions will be retained.
References
For more detailed demonstration of this function, please refer to chapter 12.5.1 of
Data Integration, Manipulation and Visualization of Phylogenetic Treeshttp://yulab-smu.top/treedata-book/index.html by Guangchuang Yu.