A total of 21 protein data sets (numbers of taxa and sites shown in Table 1) and associated simulated data (100,000 amino acid sites for every simulated data set) were used and the sites of the real and simulated data were divided into four estimated rate categories and Z-tests were carried out on each rate category.
For the site-specific rate model, characters were divided into six discrete rate categories using TreePuzzle [ 118] and partitioned in MrBayes from fastest to slowest, following a similar approach than in Kjer & Honeycutt [ 35].
According to different optimization objectives and constraints, adaptive power allocation schemes for OFDMA systems can be roughly divided into two categories: rate adaptive (RA) schemes and margin adaptive (MA) schemes.
The phenotypic series was divided into four categories, was rated and the average was calculated.
The specimen failure as a function of the strain rate can be divided into two different strain rate ranges: the first consisting of strain rate from 500 to 1000 s−1 and the second consisting of the final two strain rates 1500 and 2000 s−1 as shown in Fig. 11.
Using the two cut-off values of 50 years old and 10 days of hospitalization, the 400 cancer patients were divided into four groups and the positive rates of C. difficile in the various groups were analyzed.
The results were evaluated quantitatively and divided into four groups (0, negative; +, <30% positive rate; ++, 30 60% positive rate; and +++, >60% positive rate).
Relative frequency (y axis) of symptoms of PRIS in patients divided into four quartiles of reported propofol infusion rate.
The results were divided into four levels according to the positive rate: <10% of positive cells were marked as negative ; 10%40%% were weakly positive and >50% were strongly positive.
Thus, growth rates were divided into four growth phases: week 0 to week 43, week 43 to week 56, week 56 to week 83, and week 83 to week 98.
