A review of spline function procedures in R [PDF]
BMC Medical Research Methodology, 2019 Background With progress on both the theoretical and the computational fronts the use of spline modelling has become an established tool in statistical regression analysis. An important issue in spline modelling is the availability of user friendly, well
Aris Perperoglou +3 more
doaj +2 more sources
Unveiling the Genetic Architecture of Semen Traits in Thai Native Roosters: A Comprehensive Analysis Using Random Regression and Spline Function Models [PDF]
AnimalsImproving reproductive traits, particularly semen quality and quantity, is crucial for optimizing poultry production and addressing the current limitations in native chicken reproduction.
Iin Mulyawati Daryatmo +3 more
doaj +2 more sources
Modeling the Vertical Soil Calcium Carbonate Equivalent Variation by Machine Learning Algorithms in Qazvin Plain [PDF]
مجله آب و خاک, 2021 Introduction: Calcium Carbonate Equivalent (CCE) is one of the key soils properties in arid and semi-arid regions. The study of spatial variability of surface and subsurface layers is important in the sustainable land management of arable soils.
S.R. Mousavi +3 more
doaj +1 more source
Solving Volterra-Fredholm integral equations by natural cubic spline function [PDF]
Қарағанды университетінің хабаршысы. Математика сериясы, 2023 Using the natural cubic spline function, this paper finds the numerical solution of Volterra-Fredholm integral equations of the second kind. The proposed method is based on employing the natural cubic spline function of the unknown function at an ...
S.H. Salim, K.H.F. Jwamer, R.K. Saeed
doaj +2 more sources
Convergence Analysis of Cubic Spline Function with Fractional Degree and Applications [PDF]
مجلة جامعة الانبار للعلوم الصرفة, 2023 In this paper, a fractional degree cubic spline scheme is proposed and analyzed for fractional order with the multi-term Riemann–Liouvile (R–L) derivatives. For the integral and fractional differential equations, we handle fractional continuity equations
Twana Hidayat +2 more
doaj +1 more source
On the approximation of bounded functions by trigonometric polynomials in Hausdorff metric [PDF]
Известия Саратовского университета. Новая серия: Математика. Механика. Информатика, 2023 The article discusses a method for constructing a spline function to obtain estimates that are exact in order to approximate bounded functions by trigonometric polynomials in the Hausdorff metric.
Sadekova, Ekaterina H.
doaj +1 more source
Construction of Lacunary Sextic spline function Interpolation and their Applications [PDF]
مجلة التربية والعلم, 2010 In this paper, we consider the construction of the sextic splines function which interpolating the lacunary data. Also, under suitable conditions, we show that the existence and uniqueness of the solution. The convergence analysis of this spline function
Abbas Y. Al Bayati +2 more
doaj +1 more source
Partition Method for Solving Boundary Value Problem Using B-Spline Functions [PDF]
Engineering and Technology Journal, 2009 This paper is concerned with the approximated solution of linear two-pointsboundary value problem (LTPBVP) using Partition method with the aid of B-Splinefunctions as basis functions. The result of this method is compared with the exactsolution.
Bushra E. Kashem
doaj +1 more source
Splines and the logarithmic function [PDF]
Pacific Journal of Mathematics, 1975 Abstract : Let q be fixed, q>1, and let f(x) = log x/log q in (0, pos infinity). The paper determines the unique spline function (S sub n)(x), of degree n, defined in (0, pos infinity) and having as knots the points of the sequence (q sup nu) (neg infinity 0, and (S sub n)(1) = 0. It follows that (S sub n)(q nu) = f(q sup nu) for all integers nu.
Newman, D. J., Schoenberg, I. J.
openaire +3 more sources
Age-dependent genetic and environmental variance of semen quality in Nordic Holstein bulls
Journal of Dairy Science, 2023 : The aim of this study was to estimate genetic and environmental parameters, across bull's age, for semen quality traits including pre- and postcryopreservation semen concentration, sperm motility, and sperm viability as well as ejaculate volume and ...
Y. Salimiyekta +3 more
doaj +1 more source