The phrase "about how to classify" is correct and usable in written English.
You can use it when discussing methods or criteria for categorizing or organizing information or items.
Example: "The research paper focuses on the debate about how to classify different species of plants."
Alternatives: "regarding the classification" or "concerning classification methods".
There is still some discussion about how to classify lichens, though many taxonomists rely on genetic analyses in addition to traditional morphological data.
But pathologists often disagree about how to classify the tumors and can find it difficult to distinguish between the two types, Dr. Levine said.
When they do grasp the concept, he said, "some are very enthusiastic about the principle of pedal activation, and others say, 'Gee, isn't it great that I can select power?' " There is also confusion in government about how to classify electric bicycles.
However, clarification is needed, as Leibenluft et al. (2003) highlights that there is a degree of uncertainty about how to classify some of these cases and Meyer et al. (2011) suggested that child psychiatrists should perhaps rely more on what are considered prototypical manic symptoms such as increased energy or decreased need for sleep when diagnosing BD in children.
The evidence that supports such analyses consists in purely hypothetical judgments: judgments about how to classify cases on the supposition that your environment is like X, or like Y. Since such hypothetical judgments don't require you to determine what your real environment is like, your justification for accepting an analysis is not based on empirical knowledge.
As the research team reports online today in Nature, it was at first confused about how to classify the new dino, because its skeleton contained features typical of several different dinosaur types including carnivores and at least two kinds of plant eaters.
Even though he has designed about twenty-five suits, he is uncertain how to classify himself.
It's about figuring out what your product actually is and how to classify it, or differentiate it, from the other products on the market.
It's hard to open up about something you didn't – in my case – know how to classify two months ago.
Critics have disagreed on how to classify her work, which is alternately bleak and side-splitting.
