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.
Cellulitis isn't usually spread from person to person. Cellulitis is an infection of the deeper layers of the skin most commonly caused by bacteria that normally live on the skin's surface.You have an increased risk of developing cellulitis if you: 1  Have an injury, such as a cut, fracture, burn or scrape. 2  Have a skin condition, such as eczema, athlete's foot or shingles.ellulitis is an infection of the deeper layers of the skin most commonly caused by bacteria that normally live on the skin's surface.