Robust response surfaces regression and positive data analyses The present book initiates the concept of robust response surface designs along with the relevant regression and positive data analysis techniques. Response surface methodology (RSM) well known in literature is widely used in every field of science and technology such as Biology Natural (Physical Chemical) Environmental Medical Agricultural Quality engineering etc. RSM is the most popular experimental data generating modeling and optimization technique in every field of science. It is a particular case of robust response surface methodology (RRSM). RSM has many limitations and RRSM aims to overcome many of such limitations. Thus RRSM will be much better than RSM. It is intended for anyone who knows basic concepts of experimental designs and regression analysis. This is the first unique book on RRSM. Every chapter is unique regarding its contents presentation and organization. Problems on robust response surface designs such as rotatability slope rotatability weak rotatability optimality and along with the method of estimation of model parameters positive data analysis techniques are considered in this book. Some real examples on lifetime responses resistivity replicated measures medical demography hydrogeology data etc. are analysed. Some examples (considered in this book) on design of experiments do not satisfy the classical assumptions of response surface methodology.