The phrase "a new subset of" is correct and usable in written English.
It can be used when referring to a specific group or category that is part of a larger set, often in contexts like research, data analysis, or classification.
Example: "The study revealed a new subset of data that had not been previously analyzed."
Alternatives: "a fresh category of" or "an additional group of".
The flags have already created a new subset of petty crime.
With the Iraq war in its fifth year, a new subset of deserter is emerging, military doctors and lawyers said: accomplished soldiers who abscond reluctantly, as a result of severe emotional trauma from their battle experiences.
Following Canabalt's release, a handful of titles have taken the genre in new directions: Jetpack Joyride introduced vehicles, which altered the pacing of the game; Temple Run's over-the-shoulder viewpoint, which tails a character from behind as he flees a gaggle of spectres through an ancient ruin, has inspired a new subset of imitators.
A recently reported melanotic neoplasm with overt melanin pigment may represent a new subset of TFE3 related cancers.
To report the clinical and histologic findings of a new subset of idiopathic corneal edema: zipper cell endotheliopathy.
The validation phase of the intelligent model presented was performed using a new subset of 181 facility layout designs evaluated by a different human expert.
Thanks to traffic reports, I have developed an affinity for a whole new subset of New York landmarks.
"When you have to work around the reality of a shoot, there is a whole new subset of things you have to do," he says.
When The Blair Witch Project became a bonafide phenomenon in 1999, it forever changed the horror industry, inspiring a whole new subset of spooky found footage films, including the Paranormal Activity series.
Since the team numbering around 70, plus a five-person core design group —had such a small window for development, they had to prioritize features; for example, rather than completely redesigning the enemies, only a small new subset of artificial intelligence behaviors were added.
This data suggests genes activated during the peak of acute infection are maintained during chronic infection and that an entirely new subset of transcripts are expressed during chronic infection.
