The phrase "a function of proportions" is correct and usable in written English.
It can be used in contexts where you are discussing relationships or dependencies between different quantities or parts of a whole.
Example: "The success of the project is a function of proportions, as we need to balance resources effectively to achieve our goals."
Alternatives: "a result of ratios" or "a factor of distributions".
This modelled blue dye accumulation as a function of proportion of time observed feeding.
A study using a similar methodology of examining events as a function of proportion of disease elapsed, found that medical equipment needs also occur at predictable time points (Bromberg et al., 2010).
In products consisting of several components, the physical and engineering properties are a function of the proportions of the components.
Particle size analysis, which is a function of the proportions of sand, silt, and clay, was performed at 82 sites.
Under the classical twin model assumptions, the expected MZ twin correlation is a function of the proportions of variance in a trait explained by additive (h) and non-additive (d) genetic effects: r(MZ) = h + d.
The model gives the gross margin for each cropping system as a function of the proportion of low-input systems – and so predicts the proportion to which the farmers' choices will lead – and illustrates the use of different (simplified) policies that would ensure that the optimum proportion is reached.
The power for detecting a gene by radiation dose interaction varies as a function of the proportion of gene carriers, interaction rate ratio at 2 Gy (Int RR at 2 Gy), and predictive positive (PP) and predictive negative (PN) values for registry-noted radiation treatment for true treatment status.
In Fig. 3c the proportion protected with a mixture is plotted as a function of the proportion protected by a single immunogen.
Figure 4b shows the proportion of younger persons passing the test as a function of the proportion of older persons passing the test for three true effect sizes: −0.5 (dashed line closest to the diagonal), −1.0 (solid line), −1.5 (dashed line farthest from the diagonal), with the diagonal representing the line of no age differences in proportion of persons passing the test.
The conditional probability of movement is a function of the proportion A L,R of the total area in the reserve or the proportion A L,H = 1 − A L,R in the harvested area.
