In broad terms, Exploratory Data Analysis (EDA) can be defined as the numerical and graphical examination of data characteristics and relationships before formal, rigorous statistical analyses are applied. Although the temptation to omit EDA in favor of delving into ANOVAs, MANOVAs and the like is great, the role of EDA cannot be underemphasized. EDA rewards the user with a better understanding...

the objective followed in this descriptive-survey research was to investigate factors influencing farmers’ attitudes toward participation in water users’ associations. the statistical population of the study consisted of 1435 farmers of markazi district of zanjan county out of whom 329 were selected as sample using cochran formula. random sampling technique was used for the study. a questionnai...

In many real world applications designers tend towards building classes of objects such as concepts chunks and clusters according to some similarity criteria In this paper we rst compare two approaches to clustering the Galois lattice approach and a similarity based clustering approach Then we sketch the possible ways each approach can bene t from the other in re ning the process of building a ...

Most of the clustering algorithms utilize two techniques which are selecting cluster-heads with more residual energy and rotating cluster-heads periodically to balance energy consumption of the sensor nodes over the network . These clustering algorithms do not take the location of the base station into consideration. This lack of consideration causes the hot spots problem in multi-hop wireless ...

Density profiles of cosmological virialized systems, or dark halos, have recently attracted much attention. I first present a brief historical review of numerical simulations to quantify the halo density profiles. Then I describe the latest results on the universal density profile and their observational confrontation. Finally I discuss a clustering model of those halos with particular emphasis...

background the choice of what parameters are needed for the diagnosis of metabolic syndrome (mets) has been criticized due to the lack of an actual “gold standard” diagnostic test even in adults. this problem seems to be greater in children and adolescents. objectives stability assessment of factor structure underlying metabolic syndrome (mets) components from childhood to adolescence in a pane...