The phrase "a set of regional" is correct and usable in written English.
It can be used when referring to a collection or group of items, concepts, or characteristics that are specific to a particular region.
Example: "The study focused on a set of regional policies that aim to improve environmental sustainability."
Alternatives: "a collection of regional" or "a group of regional".
Region i is a set of regional dummy variables.
Lastly, a set of regional dummy variables are also constructed for the regions of Nairobi, Central, Eastern, North-Eastern, Coast, Rift Valley, Nyanza, and Western.
A set of regional, or even a single national primary?
Asian Paints is moving from a set of regional paint providers in India to an integrated global competitor.
Look at Germany – it's so much stronger because it has a set of regional cities with strong industries that give people equal opportunities to live and work.
The Green Guide (£9.99, 020-7502 1089, www.greenguise.co.uk) is a set of regional directories for organic/eco-friendly/ethical businesses around the country.
The comparison applies to; a set of regional-scale sample survey questionnaires, a representative sample survey on drug use among drivers and an analysis of the quantity of cocaine-related metabolites in sewage.
This finding suggests that living in a setting of regional insecurity does not have as important an effect on certain political views as personal victimization.
The Syrian civil war is both a humanitarian disaster and a focal point for a set of interlocking regional and international political struggles.
A set of representative regional climate models simulations from the EURO-CORDEX initiative driven by different RCP2.6, RCP4.5, and RCP8.5 GCMs are used to form a comparable set of results and a useful basis for the assessment of uncertainties related to impacts of 2° warming and above.
From the US perspective, the growing importance of Asia and the Pacific in the world economy means that the TPP could evolve into the long-desired Asia Pacific Free Trade Agreement yet serve as a precursor to a new set of regional and global rules with the US retaining a central role (Petri et al. 2011; Kolsky Lewis 2011).
