However, probable associations of IA with conditional combinations of mutations may also attest to the complex immuno-pathogenesis of invasive aspergillosis.
Instead, they suggested "conditional data combination" (Huelsenbeck and Bull 1996).
An intermediate approach, referred to as the conditional data combination, consists in testing a priori the level of congruence of different data sets.
Yet tests used in conditional data combination to address the validity of a character congruence approach, which evaluate incongruence of character data, often perform poorly when data are highly heterogeneous.
Conditional data combination often relies on such indices to determine the degree of congruence and on statistical tests in order to determine whether or not the data sets should be combined [ 13, 18, 33].
If simultaneous values of quantities A and B are correlated, then there are common causes C1,C2,…,Cn, such that conditional upon any combination of values of these quantities at an earlier time, the values of A and B are probabilistically independent.
For example, on CS+ trials, A+V+ and A−V− trials represented expected cue outcome combinations (conditional probability = 80%) whereas A+V− and A−V+ trials consisted of unexpected cue outcome combinations (conditional probability = 20%); c.f. Figure 2.
No cluster contains all four occurrences of the neighboring base combinations, conditional on either 5' or 3' neighboring base.
