What causes brownish stains under armpits of a white shirt and how do you get rid of it? is it cause by deodorant? or is that just sweat or both? what can i use to make my shirts armpits turn white again?
MULTIPLE REGRESSION measures the effect a group of survey questions (called the independent variables) has on a single survey question (or an average of a group of questions), called the dependent variable.
DEFINITION of 'Nonlinear Regression'. A form of regression analysis in which data is fit to a model expressed as a mathematical function. Simple linear regression relates two variables (X and Y) with a straight line (y = mx + b), while nonlinear regression must generate a line (typically a curve) as if every value of Y was a random variable. The goal of the model is to make the sum of the squares as small as possible.