We present a stepwise approach to estimate high dimensional Gaussian graphicalmodels. exploit the relation between partial correlation coefficientsand distribution of prediction errors, and parametrize model in termsof Pearson coefficients errors nodes’best linear predictors. propose novel algorithm for detecting pairsof conditionally dependent variables. compare proposed withexisting methods i...

Many general statistical packages now contain facilities for the analysis of longitudinal data. However, these facilities are typically limited in scope and do not exploit the particular character of longitudinal data in the way they handle basic operations such as data-entry, plotting and summarisation of results. Oswald (Smith & Diggle 1994) is a package of functions and data types for use wi...

geothermobarometry equations are based on thermodynamic principles and appear in single or multi-variant functions. the number of variants for a specific composition or reaction usually is reduced into 2 involving temperature (t) and pressure (p). since most of planned equations have two passive or variant p and t, using these equations should be with special care. it is very effective to use g...

electronic government is a new concept that governments according to level of development implement in different ways. utilizing informational systems in business sections has created potential context for developing electronic government. customer relationship ‎management (crm) is an important system in management that helps to develop electronic government and promote citizenship-based in org...