The phrase "a graphical examination" is correct and usable in written English.
It can be used when referring to an analysis or review that involves visual representations, such as charts or graphs.
Example: "The report includes a graphical examination of the data trends over the past five years."
Alternatives: "a visual analysis" or "a graphical analysis".
Both a statistical test of proportional hazards assumption and a graphical examination using Schoenfeld residuals were performed to test the proportional hazards assumption of the Cox regression models [39].
They studied the influence of pressure and temperature on the composition and the retrograde gas dew point, and implemented a graphical examination in order to obtain a chart correlating volumetric and phase behavior with the composition of the system and temperature.
Figure 4 shows selected plots of a graphical examination of APC effects.
A statistical test of proportional hazards assumption and a graphical examination using Schoenfeld residuals will be carried out to assess the proportional hazards assumption.
Although not very well known, this plot is an enlightening tool for data interpretation, as it enables a graphical examination of the relationships between variables and variates.
Initial estimates can be based on a graphical examination of the model behavior for a realistic range of coefficient values, 2224) as well as on the comparison of the plotted experimental data with the model plots.
To assess the shape of the relationship between measures at birth and NO2 levels, we used adjusted GAM models to evaluate the linearity of the relation between NO2 levels and the reproductive outcomes, comparing models with NO2 levels in a linear and non-linear manner (a cubic smoothing spline with 2, 3, and 4 degrees of freedom) by means of graphical examination and an LR test (p < 0.05).
Based on graphical examination of the data, a quadratic term for time of day was introduced to model the possible curvilinear association between symptoms and time of day.
After initial descriptive and graphical examination of the response measurements (with a consideration of transformation), we will examine correlations among markers within each of the hypothesized pathways that are being examined between physical activity and breast cancer risk.
However, the main method of examining the distributions of the measures was through graphical examination as this is the most appropriate method for large samples [ 35].
Insulin-glucose homeostatic pharmacodynamic (PD) models reported in the literature were not evaluated as TAK-875 did not appear to have an apparent effect on fasting serum insulin based on the graphical examination of fasting serum insulin levels vs. time obtained in this phase 2 study.
