The phrase "actually a function of" is correct and usable in written English.
It can be used to indicate that something is determined or influenced by another factor or variable.
Example: "The success of the project is actually a function of the team's collaboration and communication skills."
Alternatives: "truly a result of" or "genuinely dependent on".
It is actually a function of y.
And I understand that scrum hockey is actually a function of increased excellence, not a degradation of skills.
Excessive waiting times are actually a function of scheduling and were common for years before health maintenance organizations and Medicare even existed.
I always suspected – and I knew him slightly – that his ill-repressed rage was actually a function of his status as the epigone's epigone.
But we really need to sift through the colour and movement if we are to understand that our groaning banquet of passing strange is actually a function of a deep malaise at the heart of the US political system.
Under these circumstances, push pull test data should be evaluated to ensure the apparent rate is actually a function of time and that complexities in rate data be considered.
So actually as a function of b and theta, it's given over there.
Note that ψ T in (5) actually is a function of azimuth θ and elevation angle φ.
I'm not crazy – it's actually just a function of the angle you press the key at and the shape of the key itself.
In particular, we could later seek to improve the overall DMT performance by optimizing over the choices of L. Therefore, L can actually be a function of the multiplexing gain r.
Since perception of air quality itself may also correlate with actual exposure levels, the observed effects from this study could be due in part to subjective perceptions of pollution; however, it has also been shown perceived air quality may actually be a function of mood states and anxiety [ 63, 64].
