The interaction among these three variables was also taken into consideration, and a multiple linear regression analysis was performed aiming at establishing a mathematical relationship for simulating the draught variation as a function of these variables.
In this second step, we also introduced all the interactions among these four variables.
Although CAN 1 and CAN 2 represent the interactions among the five variables considered, according to the raw canonical coefficients (RCC), the separation between the ruminal acidosis classes along the CAN 1 axis, which was particularly evident between N and A, appeared to be strongly related to β-HB (RCC = 7.8) and glucose (RCC = 1.6).
The researchers concluded that addiction, defined as compulsive drug use even under adverse circumstances, results from the interaction of two variables: extended use and individual vulnerability.
Fermat considered an equation among two variables.
IR theorists argue that war is the contingent outcome of the interaction among variables operating at three "levels of analysis": the international level, the domestic level, and the individual level.
We estimated the significance of the interactions between these two variables by comparing a model including only fixed effects vs. a model including fixed effects and their interaction.
The model variations were selected based on the interaction among the studied variables, namely, six moisture contents ranging from 0.03 to 0.22 m3 m−3, five wet bulk densities ranging from 1.3 to 2.0 Mg/m3 and six tillage depths ranging from 0.10 to 0.37 m.
It predicts the maximum enzyme production among the selected range of variables and also studies the interaction among independent variables.
The P values are used as a tool to check the significance of each of the interaction among the variables, which in turn may indicate the patterns of the interactions among the variables.
