What is "segreg"

In statistics and data analysis the application software SegReg is a free and user-friendly tool for linear segmented regression analysis to determine the breakpoint where the relation between the dependent variable and the independent variable changes abruptly.

Originally the method was developed for the analysis of the influence of soil salinity and depth of the watertable on growth of agricultural crops. However, it can be used for many other types of phenomena and relations, for example:

• the change of nutrient contents in plants with time
• the number of negative indicator responses at 30% upstream riparian harvest
• phosphorus and flow duration on the Saline River