The phrase "a function of quantity" is correct and usable in written English.
It can be used in contexts where you are discussing how a particular outcome or variable changes in relation to the amount of something.
Example: "The cost of production is a function of quantity, meaning that as we produce more units, the cost per unit decreases."
Alternatives: "dependent on quantity" or "related to quantity".
Based on the experimental results, a correlation for F2 as a function of quantity of water (load) is proposed.
Figure 2e shows the variation of conversion yield for the 3 different oils as a function of quantity of added water and reaction time at constant enzyme concentration (6.5 %) and reaction temperature (45 °C).
However, in the presence of PRL, pGL4-CISH luciferase activity increased as a function of quantity of transfected Stat5a (Fig 4D).
The reduction to surface form facilitates the evaluation of individual stability growth rates as each becomes a function of quantities that are distributed along the chamber's boundaries.
Mathematical formula was developed for concrete strength as a function of CA quantity that ranges from the standard quantity to null, and another formula was developed for the quantity of FA as a function of compressive strength.
If before the unification we could express each quantity as a function of four quantities (two temperatures and two other quantities—Table 3), now we can express each quantity as a function of three variables: the speed w and the two internal temperatures.
In Figure 1, we included the two-dimensional plots demonstrating the scaling for [IL-2]max as a function of antigen quantity for different numbers of cells, or as a function of population size for varied quantities of input antigen.
They used a logistic regression statistical approach to establish the probability of ZIKV infection as a function of the quantity of IgG antibodies that react against the NS1 protein of DENV, which they determined using two serological assays.
For further experimental investigations, a correlation is proposed to predict laminar burning velocity as a function of the quantity of O2 and CO2 in the gas mixture.
The optical study reveals shift in the absorption edge towards the higher wavelengths, i.e. the band gap decreases as a function of 'x' (quantity of selenium in the bath).
