The phrase "a set of roughly" is correct and usable in written English.
It can be used when you want to describe an approximate quantity or grouping of items or concepts.
Example: "The researchers compiled a set of roughly twenty studies to analyze the effects of the new drug."
Alternatives: "a collection of approximately" or "a group of about".
As grist for this undertaking we focus on a set of roughly two dozen judicial decisions and administrative rulings to illustrate our claims.
It's a set of roughly made chimes hanging from a pole anchored in a white base shaped like a guitar body.
These objects are governed by a set of roughly Earth-like laws of physics that simulate conservation of momentum, gravity, and elasticity in collisions and so on.
In the hybrid approach, an evolutionary algorithm, such as genetic algorithm or particle swarm optimization, firstly searches the entire problem space to get a set of roughly estimated solutions.
Someone's going to sleep in them". Overall, there is a set of roughly 60 rules.
In between these features, a set of roughly N-S sub-parallel fracture zones were identified from bathymetric, gravity, magnetic, and seismic data (Barckhausen2006; Delescluse and Chamot-Rooke2007; Detlus et al.1998; Lin et al.2009; Sibuet et al.2007) (Figures 1a and2a).
The SIMPLIcity systemrepresents an image by a set of regions, roughly corresponding to objects, which arecharacterized by color, texture, shape, and location.
An image in the database, or a portion of an image, is represented by a set of regions, roughly corresponding to objects, which are characterized by color, texture, shape, and location.
More crucially for an R&B artist at this stage in her career it establishes a persona and a set of coordinates, roughly at the point of intersection between self-effacement and self-empowerment.
The shooter was near a set of stairs roughly 50 feet from the officers, who were firing from behind some type of barricade on one side of the baseball field.
The White House statement on this week's talks lists a set of issues roughly as lengthy as those reported last spring.
