• FISHPAK

  • Referenced in 103 articles [sw08012]
  • more general separable elliptic equations. The solvers use the cyclic reduction algorithm. When the problem ... origin r=0 in cylindrical coordinates, and at the poles in spherical coordinates. Test programs...
  • kequate

  • Referenced in 5 articles [sw20025]
  • R package kequate: The Kernel Method of Test Equating. Performing the Kernel Method of Test ... Equating with the Package kequate. In standardized testing it is important to equate tests ... method of test equating, which is a conjoint framework of test equating, has gained popularity ... test using either chain equating or post- stratification equating, and non-equivalent groups using covariates...
  • psych

  • Referenced in 45 articles [sw04549]
  • R package psych: Procedures for Psychological, Psychometric, and Personality Research , A number of routines ... psychology. Functions are primarily for scale construction using factor analysis, cluster analysis and reliability analysis ... using factor analysis of tetrachoric and polychoric correlations. Functions for simulating particular item and test ... functions serve as a useful front end for structural equation modeling. Graphical displays of path...
  • plink

  • Referenced in 8 articles [sw23674]
  • R package plink: IRT Separate Calibration Linking Methods. Item response theory based methods are used ... conduct chain linking of unidimensional or multidimensional tests for multiple groups under a common item ... Haebara and Stocking-Lord method using single or multiple dilation parameters for multidimensional extensions ... conducting IRT true score and observed score equating, and plotting item response curves/surfaces, vector plots...
  • RcppGSL

  • Referenced in 7 articles [sw10617]
  • sequences, Monte Carlo integration, N-tuples, differential equations, simulated annealing, numerical differentiation, interpolation, series acceleration ... extensive test suite. The RcppGSL package provides an easy-to-use interface between GSL data ... structures and R using concepts from Rcpp which is itself a package that eases...
  • repolr

  • Referenced in 10 articles [sw07133]
  • modified version of the generalized estimating equation (GEE) method for model fitting for a range ... parameter estimation are described for the widely used uniform and first-order autoregressive correlation models ... algorithm (repolr) in the R statistical software package, that both tests the assumption of proportional...
  • DNA

  • Referenced in 8 articles [sw26923]
  • this score to propose formal statistical tests for each of following queries: (i) whether ... Gaussian networks and networks based on differential equations. We show that, for appropriate choices ... useful tool in exploring changes in network structures under different biological conditions. An R package ... tests can be downloaded from the supplementary website http://www.somnathdatta.org/Supp/DNA....
  • ECOSMOG

  • Referenced in 11 articles [sw16205]
  • performed numerous tests for the f(R) gravity model as an example to show ... multigrid relaxation to solve the extra equation(s) on both the regular domain grid ... utilised to test gravity and the dark energy hypothesis using the upcoming and future deep...
  • CRASH

  • Referenced in 7 articles [sw18109]
  • operator-split method is used to solve these equations in three substeps: (1) an explicit ... exchange. We present a suite of verification test problems to demonstrate the accuracy and performance ... Adaptive Tree Solarwind Roe Upwind Scheme (BATS-R-US) code with a new radiation transfer...
  • cSEM

  • Referenced in 1 article [sw37974]
  • R package cSEM: Composite-Based Structural Equation Modeling. Estimate, assess, test, and study linear, nonlinear ... hierarchical and multigroup structural equation models using composite-based approaches and procedures, including estimation techniques...
  • SNSequate

  • Referenced in 3 articles [sw21191]
  • R package SNSequate: Standard and Nonstandard Statistical Models and Methods for Test Equating. Contains functions ... test equating. It currently implements the traditional mean, linear and equipercentile equating methods, as well ... newest methods such that local equating, kernel equating (using Gaussian, logistic and uniform kernels) with...
  • rsem

  • Referenced in 4 articles [sw06771]
  • structural equation modeling (SEM) and an R package rsem to facilitate the use ... stage. A sandwich-type covariance matrix is used to obtain consistent standard errors ... overall model evaluation. Using R and EQS, the R package rsem combines the two stages ... generates all the test statistics and consistent SEs. Following the robust analysis, multiple model...
  • npsurvSS

  • Referenced in 1 article [sw39806]
  • exponential, mixture cure). It is the companion R package to the paper by Yung ... rank test, users may specify which approximations they wish to use to estimate the large ... over the conventional sample size and power equations based on Schoenfeld (1981)
  • sensobol

  • Referenced in 1 article [sw37035]
  • R package sensobol: Computation of Variance-Based Sensitivity Indices. It allows to rapidly compute, bootstrap ... third-order Sobol’-based sensitivity indices using several state-of-the-art first and total ... differential equations. The package also provides a suit of benchmark tests functions and several options...
  • dqed

  • Referenced in 3 articles [sw05224]
  • nonlinear equation problems. The algorithm is based on approximating the nonlinear functions using the quadratic ... tensor model proposed by R. B. Schnabel and P. D. Frank [SIAM J. Numer. Anal ... linear constraints on the unknowns. The algorithm uses a trust-region defined ... nonlinear least squares solver. This is done using a simpler version of the algorithm...
  • DBEC-GP-CUDA

  • Referenced in 2 articles [sw18217]
  • solving the dipolar Gross-Pitaevskii (GP) equation including the contact interaction in two and three ... using CUDA toolkit and can make use of Nvidia GPU devices. The algorithm used ... method as in the previous version [{it R. Kishor Kumar} et al., ibid ... addition, the Fast Fourier Transform (FFT) library used in the previous version is replaced...
  • HELARS

  • Referenced in 1 article [sw36942]
  • system, a system of linear partial differential equations with a finite-dimensional space of solutions ... algorithm was implemented using the statistical software R, and was tested with real and simulated...
  • aSPU

  • Referenced in 1 article [sw17060]
  • aSPUw’) tests and gene-based and some pathway based association tests (Pathway based ... Powered Score tests (’SPUpath’), adaptive ’SPUpath’ (’aSPUpath’) test, ’GEEaSPU’ test for multiple traits - single ... nucleotide-polymorphism) association in generalized estimation equations, ’MTaSPUs’ test for multiple traits - single ’SNP’ association ... GWAS’) summary statistics, Gene-based Association Test that uses an extended Simes procedure (’GATES’), Hybrid...
  • generalCorr

  • Referenced in 1 article [sw15276]
  • simultaneous equation models where endogeneity of regressors is feared, we can use Prof. Koopmans’ method ... generalized for the asymmetric matrix of r*’s. Partial correlations help asses effect ... inference and one for a heuristic t-test...
  • GEint

  • Referenced in 0 articles [sw18470]
  • R package GEint. Misspecified Models for Gene-Environment Interaction. First major functionality is to compute ... order moments, it may be easier to use GE_bias_normal_squaredmis(). This function places ... simulation and non-linear equation solvers, these can be used to check your work. Second ... Bootstrap Inference with Correct Sandwich (BICS) testing procedure, which we have found to provide better...