The phrase "affect the margin of" is correct and usable in written English.
It can be used when discussing the impact or influence on a specific margin, often in financial, statistical, or analytical contexts.
Example: "The new policy changes are expected to significantly affect the margin of profit for the company this quarter."
Alternatives: "influence the margin of" or "impact the margin of".
The observation that ranolazine's antifibrillatory effect is not associated with a significant increase in ventricular defibrillation threshold indicates that the drug appears unlikely to affect the margin of safety for defibrillation.
Lastly, although the number of patients in each different zones was substantial, the smaller number of patients in tropical as compared to temperate regions might affect the margin of error in the confidence intervals of mortality differences between seasons, although the pooled tropical zones still contained 9811 patients.
A driver's choice of speed can affect the margins of error that are left when he or someone else makes a mistake.
Because the cuts only affect the margins of a wide array of defense and domestic discretionary programs, there mostly hasn't been an immediate pinch; the public backlash has been minimal.
Owing to the presence of the n1/2 term in the formula for an interval estimate, the sample size affects the margin of error.
Because "the discovery of hazards and proposed remedies have the potential to adversely affect the profit margin of business (Murray 2003, p 223)," there has been longstanding neglect for occupational safety and health that is not limited to this community or industry.
Thus the expiration of the Ex-Im would mainly affect the profit margins of a handful of big corporations.
Lobate scarps (white arrows) affect the western margins of Chajorra and the hill to the east of the mountain.
In that talk, Mr. Miller dismissed the technology as environmentally unsound and expensive, and said that shale gas would affect only the margins of Gazprom's business — characterizing shale as merely an appetizer to Gazprom's main course.
The Early Cretaceous rifting event that affected the eastern margin of the Indian platform also led to some rejuvenation of the older Gondwanan rifts.
All this implies that a great tsunami or tidal wave affected the ocean margin of the time, washing fresh land plants well out to sea and tearing up seafloor sediments that had lain undisturbed for millions of years.
