parallel_tree(x, mzdiff = 0.3, intocutoff = 0.05, equals = 0.85, interval = 0.1);
a collection of the spectrum sample data, should be a tuple list object that contains multiple sample data to build tree. each slot value in this tuple list should be a vector of the PeakMs2 spectrum data. [as list]
[as double]
[as Environment]
a union spectrum taxonomy tree object