evaporation is one of the main parameters for the optimum operation of reservoirs, design of irrigation systems and scientific management of water resources. accurate estimation of the water evaporation level is crucial in any region especially in arid and semiarid regions. in this study, the feasibility of simulation of pan evaporation in maraghe station using the multiple regression models we...

Usually the existence of influential observations is complicated by the presence of collinearity in linear measurement error models. However no method of influence measure available for the possible effect's that collinearity can have on the influence of an observation in such models. In this paper, a new type of ridge estimator based corrected likelihood function (REC) for linear measurement e...

We characterize the collinearity (adjacency) relation of dual polar spaces and half-spin Grassmann spaces in terms of the relation to be opposite in the corresponding collinearity graphs. Our characterization is closely related with results given [1] and [2].

methodsusing time series data of national level (1967 to 2012 years), we explored the association between total fertility rate, gdp per capita, number of physician per 1000 populations, female labor force participation rate, percentage of people living in rural regions and mean years schooling for each people with infant mortality rate of iran. these data were obtained from central bank of isla...

Lower tropospheric temperature anomalies from the global satellite MSU that have been available since 1979 are unique and play a significant role in the continuing climate debate. A number of investigators have analyzed the MSU data using regression analysis to remove the geophysical effects of volcanoes, El Niño/Southern Oscillation, and solar irradiance in an effort to determine any underlyin...

Gestalt factors of collinearity and similarity facilitate two fundamental perceptual tasks: grouping elements into figures and segmentation of figures from the ground. We have used a global-local paradigm to examine the psychophysical and neural correlates of these processes in humans: observers discriminated between orientations of either a three-Gabor group (grouping), or of a central Gabor w...

July 26, 2010 Title Tools for evaluating collinearity Version 2.04 Author John Hendrickx Description “perturb” evaluates collinearity by adding random noise to selected variables. “colldiag” calculates condition numbers and variance decomposition proportions to test for collinearity and uncover its sources. Maintainer John Hendrickx License GPL (>= 2) Enhances car URL...

This paper presents a discussion of the collinearity problem in regression and discriminant analysis. The paper describes reasons why the collinearity is a problem for the prediction ability and classification ability of the classical methods. The discussion is based on established formulae for prediction errors. Special emphasis is put on differences and similarities between regression and cla...