Using logistic regression in Ecology

Abstract

Regression analysis as a method of studying relationship between a dependent variable and one or more independent variables is wen known. This method fails if the dependent variable is binary i.e. yes-no, present-absent etc. Use of logistic regression is appropriate for such problems. The purpose of this note is to bring to the attention of Indian ecologists this useful statistical tool. The computing aspect is also considered. Two applications in ecology are discussed.