The phrase "across varying" is correct and usable in written English.
It can be used to describe something that occurs or is applicable in different situations, contexts, or conditions.
Example: "The study examined the effects of the new policy across varying demographics to ensure comprehensive results."
Alternatives: "across different" or "throughout diverse".
While the characteristics of the SMS reads will vary depending on platform, we expect that the distribution of reads across varying transcript concentrations to remain relatively consistent.
It has been well documented that Okun's coefficient varies across business cycles and displays a nonlinear relationship across varying levels of unemployment and output growth.
As you can see, all of these seem geared towards your average consumer across varying demographics.
Our prediction accuracies are recorded between 85 to 95% across varying number of mappers.
MPCA's subject parameters represent the average positions of a group of subjects across varying viewpoints and lighting conditions.
We test this proposition by checking for differential effects of overall labour demand across varying levels of occupation-specific demand.
To explore daily patterns of physical activity in early adolescent youth, and identify whether patterns differed across varying activity levels.
This study investigated multidimensional perfectionism, depression, and relational health and quality across varying severities of eating disorders.
The results indicate AIERO is capable of returning consistent rankings of concept pairs across varying knowledge frameworks.
Evidence contained in files kept by the East German secret police, the Stasi, reveals the individual programmes of drug-taking for many athletes across varying periods of time.
For example, the subject parameters represent the averages of the relative positions of subjects in the data space across varying viewpoints and lighting conditions.
