read_fft_df reads and returns
the definition of a single FFT (as a tidy data frame)
from the multi-line FFT definitions of an FFTrees object.
read_fft_df allows reading individual tree definitions
to manipulate them with other tree trimming functions.
write_fft_df provides the inverse functionality.
read_fft_df(ffts_df, tree = 1)One FFT definition (as a data frame in tidy format, with one row per node).
A set of FFT definitions (as a data frame,
usually from an FFTrees object,
with suitable variable names to pass verify_ffts_df.
The ID of the to-be-selected FFT (as an integer),
corresponding to a tree in ffts_df.
Default: tree = 1.
get_fft_df for getting the FFT definitions of an FFTrees object;
write_fft_df for writing one FFT to tree definitions;
add_fft_df for adding FFTs to tree definitions;
FFTrees for creating FFTs from and applying them to data.
Other tree definition and manipulation functions:
add_fft_df(),
add_nodes(),
drop_nodes(),
edit_nodes(),
flip_exits(),
get_fft_df(),
reorder_nodes(),
select_nodes(),
write_fft_df()