Geodesic
Orthogonal Hahn polynomials in regression models
Matematičeskoe modelirovanie, Tome 17 (2005) no. 4, pp. 125-128.

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The question of using the Hahn polynomials of a discrete variable in regression observation models is considered. Some difficulties connected with the instability of polynomial calculation with reference to round-off errors are discussed. It is shown, that these difficulties are got over by choosing the stable method of Hahn polynomial calculation. 
@article{MM_2005_17_4_a9,
     author = {A. F. Nikiforov and M. V. Skachkov},
     title = {Orthogonal {Hahn} polynomials in regression models},
     journal = {Matemati\v{c}eskoe modelirovanie},
     pages = {125--128},
     publisher = {mathdoc},
     volume = {17},
     number = {4},
     year = {2005},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MM_2005_17_4_a9/}
}
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A. F. Nikiforov; M. V. Skachkov. Orthogonal Hahn polynomials in regression models. Matematičeskoe modelirovanie, Tome 17 (2005) no. 4, pp. 125-128. http://geodesic.mathdoc.fr/item/MM_2005_17_4_a9/