The phrase "best fitting function" is correct and usable in written English.
It is typically used in statistical or mathematical contexts to refer to a function that best represents a set of data points.
Example: "To analyze the relationship between the variables, we need to determine the best fitting function for the data."
Alternatives: "optimal fitting function" or "most suitable function."
Determining the best fit for the ILD functions was particularly useful, as we used the parameters of the best fitting function for each ILD function for quantifying the characteristics of that ILD function, i.e. response strength, ILD50 or peak ILD, and full width at half maximum or 80% dynamic range (these characteristics are described later in detail).
The best fitting function may predict the SiC volume fractions and microstructures of the electrical resistivity composites, and give a guideline for material design.
The best fitting function for all three models in the sense of a minimum —is (7).
Step-wise regressions starting with all five polynomial terms were used to identify the best fitting function describing the relationship between genetical and physical maps.
The ILD50 was found using the inverse function (described earlier) of the best fitting function [eqns 1 or 2].
If the best fitting function for an ILD function was either a Boltzmann or an exponential function, the ILD function was termed monotonic.
Although a single scaling factor (E2) explains much of the variability in the data there are systematic sources of variance in the residuals (i.e., deviations of the data from the best fitting functions).
A regression analysis was conducted to find the best-fitting function relating severity to publication index, and a log-log relationship gave the best fit, with R = .648, p<.001.
We use the best-fitting function to assign emissions in our model and conclude that even though maximum emissions from pumps can increase slightly, they do not modify our conclusions.
Red lines show values computed by our best-fitting function consisting of logarithmic and exponential functions (see text).
Results in bold indicate the best-fitting function explaining the distribution.
