The phrase "a clear group of" is correct and usable in written English.
It can be used when describing a distinct and easily identifiable collection of items, people, or concepts.
Example: "In the study, we identified a clear group of participants who exhibited similar behavioral patterns."
Alternatives: "a distinct set of" or "an identifiable collection of".
No matter what service you provide, you need to have a clear group of individuals who would see a value added from your product or service.
I think a coasting school is unable to achieve even expected progress among a significant number of pupils – say 20% – or among a clear group of pupils, for example white, working-class boys.
The hardest thing for a marketer can be to find a clear group of people willing to buy your product.
Clustering with 1,000 random genes also gave complete separation of basal and differentiated epithelium samples with a clear group of genes overexpressed in basal cells relative to differentiated epithelium, and another group of genes underexpressed in basal cells relative to differentiated epithelium (Figure 2B).
However, in smaller projects, there is a clear group of phenotypes that should be scored for putative ciliopathies (Fig. 2); whether or not such phenotypes have been analysed needs to be made clear to the community when studies are published.
A histogram of the MD test statistics is shown in Figure 4d, again confirming that the MD statistics identifies a clear group of changed profiles between the two conditions.
Based on acoustic data they collected in the region in 2006, the researchers identified and mapped the calls of various whales, and discovered a clear grouping of species within the dense herring shoals: Humpback whales congregated in two main clusters, at either end of the spawning grounds, while minke, fin, and blue whales set up feeding territories in the space in between.
Surprisingly, even Fig. 4b shows a clear grouping of keys by signature age - But this grouping does not appear a year earlier, in Fig. 4a.
The data set had a clear grouping of individuals into indica and japonica groups at K = 2, while further sub-structure was found within the japonica varieties at higher values of K (Fig. 5).
There was a clear grouping of pots according to the P fertiliser applied when concentrations of Ca, K, Mg, Mn, Na and K in leaves, stems and grain were used in a PCA (Fig. 6a).
There is a clear grouping of the results depending on the type and quantity of fibers in UHPC, which was also observed in the relationship between the percentage of mass loss after the frost resistance test and after the salt resistance test (Fig. 10).
