where A = [uVlnxn with aU = 6i,ji + hi_ ,,j, C = I n-‘J, I is the n x n identity matrix and J is the n x n matrix of all 1’s. This determinant arises in the calculation of cumulants of a statistic analogous to Pearson’s chisquared for a multinomial sample (Sibson [5]), and its value has been conjectured by Good [2]. In this paper we use enumerative methods to prove Good’s conjecture. The partic...

Spatial structure in metacommunities and their relationships to environmental gradients have been linked to opposing theories of community assembly. In particular, while the species sorting hypothesis predicts strong environmental influences, the neutral theory, the mass effect, and the patch dynamics frameworks all predict differing degrees of spatial structure resulting from dispersal and com...

This paper describes a new method for Symbolic Regression that allows to find mathematical expressions from dataset. has strong basis. As opposed other methods such as Genetic Programming, this is deterministic, and does not involve the creation of population initial solutions. Instead it, simple expression being grown until it fits data. The experiments performed show results are good Machine ...

This article explains the usage of R package [tvReg](https://CRAN.R-project.org/package=tvReg), publicly available for download from Comprehensive Archive Network, via its application to economic and finance problems. The six basic functions in this cover kernel estimation semiparametric panel data, seemingly unrelated equations, vector autoregressive, impulse response, linear regression models...

A regression equation for annual electricity costs in a large industrial company is obtained. The choice of three determining factors was made: production oil products and pet-rochemicals, headcount, heat energy. It shown that with an increase the values cost at enterprise increases. use thermal energy company, on one hand, leads to reduction consumption due interchangeability types energy, oth...