In simple linear regression a single independent variable is used to predict the value of a dependent variable. In multiple linear regression two or more independent variables are used to predict the value of a dependent variable. The difference between the two is the number of independent variables.
Watching for Systemic Symptoms. 1  1. Watch from swollen glands. Serious cases of cellulitis will spread beyond the initially infected region to become systemic and impact the rest of the body. 2  2. Notice if you experience fever and/or chills.
You are more likely to get cellulitis if you have a medical condition, like diabetes or HIV/AIDS, that makes it hard for your body to fight infection. Symptoms may include: 1  Redness, swelling, and skin that feels hot to the touch. 2  Extreme tenderness or pain.