The phrase "addition of variables" is correct and usable in written English.
It can be used in contexts related to mathematics, programming, or data analysis when discussing the process of combining or summing different variables.
Example: "In this experiment, the addition of variables will help us understand the overall impact on the results."
Alternatives: "combining variables" or "summing variables".
Similar to prior reports, e.g.28, we identified the appropriate model by minimizing Akaike's information criterion (AIC) during stepwise addition of variables.
Table 2 Stepwise addition of variables Model R R2 Change statistics R2 Change F Change Sig.
Or formally, and are constrained if for any satisfying, (Again, note that the addition of variables takes place in real domain).
Interesting knowledge was that the gradual addition of variables number of MR, number of CT and number of medical devices together, to the input side did not have a significant impact on the overall estimated efficiency of healthcare facilities.
The addition of variables relating to a diagnosis of bipolar disorder or schizophrenia improved the accuracy of a predictive model of cardiovascular risk for those with these diagnoses (Osborn et al. 2015).
Interesting knowledge was that the gradual addition of variables "number of MR devices ", "number of CT devices " and "number of all medical devices " to the input side did not have a significant impact on the overall estimated efficiency of healthcare facilities.
Consequently, our study highlights that hybrid scaffolds obtained by the addition of variable concentrations of SS to a constant COLL composition positively influences the behavior of 3T3-L1 cells with the exception of the COLL SS6 matrix (60% SS).
In the case of ammonium sulphate, precipitation was optimized by addition of variable quantities of the precipitant agent until enzymatic activity recovered in the supernatant (measured in triolein hydrolysis) was minimal.
The experimental parameters selected for this study were reaction temperature, oil/ethanol ratio (v/v), and different alkaline environments obtained by the addition of variable volumes (in μl) of NaOH 10 N.
CD44 family differs in extracellular domain by addition of variable states through alternative splicing.
Once established, this level of end-tidal CO2 was maintained during all breathing maneuvers by addition of variable amounts of the air/CO2 mixture to the Douglass bag.
