Man pages for DPQ
Density, Probability, Quantile ('DPQ') Computations

algdivCompute log(gamma(b)/gamma(a+b)) when b >= 8
b_chiCompute E[chi_nu]/sqrt(nu) useful for t- and...
BernBernoulli Numbers
bpser'pbeta()' 'bpser' series computation
chebyshevPolyChebyshev Polynomial Evaluation
dbinom_rawR's C Mathlib (Rmath) dbinom_raw() Binomial Probability pure...
dchisqApproxApproximations of the (Noncentral) Chi-Squared Density
dgamma.RGamma Density Function Alternatives
dgamma-utilsBinomial Deviance - Auxiliary Functions for 'dgamma()' Etc
dhyperBinMolenaarHyperGeometric (Point) Probabilities via Molenaar's Binomial...
dnbinomRPure R Versions of R's C (Mathlib) dnbinom() Negative...
dntNon-central t-Distribution Density - Algorithms and...
dot_D_utilsDistribution Utilities "dpq"
DPQ-packageDensity, Probability, Quantile ('DPQ') Computations
dpsifnPsi Gamma Functions Workhorse from R's API
dtWVAsymptotic Noncentral t Distribution Density by Viechtbauer
expm1xAccurate exp(x) - 1 - x (for smallish |x|)
format01precFormat Numbers in [0,1] with "Precise" Result
fr_ld_expBase-2 Representation and Multiplication of Numbers
gam1dCompute 1/Gamma(x+1) - 1 Accurately
gamln1Compute log( Gamma(x+1) ) Accurately in [-0.2, 1.25]
gammaVerGamma Function Versions
hyper2binomPTransform Hypergeometric Distribution Parameters to Binomial...
IxpqNormalized Incomplete Beta Function "Like" 'pbeta()'
lbeta(Log) Beta and Ratio of Gammas Approximations
lfastchooseR versions of Simple Formulas for Logarithmic Binomial...
lgamma1pAccurate 'log(gamma(a+1))'
lgammaAsympAsymptotic Log Gamma Function
log1mexpCompute log(1 - exp(-a)) and log(1 + exp(x)) Numerically...
log1pmxAccurate 'log(1+x) - x' Computation
logcfContinued Fraction Approximation of Log-Related Power Series
logspace.addLogspace Arithmetix - Addition and Subtraction
lssumCompute Logarithm of a Sum with Signed Large Summands
lsumProperly Compute the Logarithm of a Sum (of Exponentials)
newtonSimple R level Newton Algorithm, Mostly for Didactical...
numer-utilsNumerical Utilities - Functions, Constants
p1l1Numerically Stable p1l1(t) = (t+1)*log(1+t) - t
pbetaRv1Pure R Implementation of Old pbeta()
phyperAllBinCompute Hypergeometric Probabilities via Binomial...
phyperApprAS152Normal Approximation to cumulative Hyperbolic Distribution -...
phyperBinHyperGeometric Distribution via Approximate Binomial...
phyperBinMolenaarHyperGeometric Distribution via Molenaar's Binomial...
phyperIbetaPearson's incomplete Beta Approximation to the Hyperbolic...
phyperMolenaarMolenaar's Normal Approximations to the Hypergeometric...
phyperPeizerPeizer's Normal Approximation to the Cumulative Hyperbolic
phyperRR-only version of R's original phyper() algorithm
phyperR2Pure R version of R's C level phyper()
phypersThe Four (4) Symmetric 'phyper()' Calls
pl2curvesPlot 2 Noncentral Distribution Curves for Visual Comparison
pnbetaNoncentral Beta Probabilities
pnchi1sq(Probabilities of Non-Central Chi-squared Distribution for...
pnchisqAppr(Approximate) Probabilities of Non-Central Chi-squared...
pnchisqWienergermWienergerm Approximations to (Non-Central) Chi-squared...
pnormAsympAsymptotic Approxmation of (Extreme Tail) 'pnorm()'
pnormLUBounds for 1-Phi(.) - Mill's Ratio related Bounds for pnorm()
pntNon-central t Probability Distribution - Algorithms and...
powX to Power of Y - R C API 'R_pow()'
pow1pAccurate (1+x)^y, notably for small |x|
ppoissonDirect Computation of 'ppois()' Poisson Distribution...
pt_Witkovsky_Tab1Viktor Witosky's Table_1 pt() Examples
qbetaApprCompute (Approximate) Quantiles of the Beta Distribution
qbinomRPure R Implementation of R's qbinom() with Tuning Parameters
qchisqApprCompute Approximate Quantiles of the Chi-Squared Distribution
qgammaApprCompute (Approximate) Quantiles of the Gamma Distribution
qnbinomRPure R Implementation of R's qnbinom() with Tuning Parameters
qnchisqApprCompute Approximate Quantiles of Noncentral Chi-Squared...
qnormAsympAsymptotic Approximation to Outer Tail of qnorm()
qnormRPure R version of R's 'qnorm()' with Diagnostics and Tuning...
qnormUapprApproximations to 'qnorm()', i.e., z_alpha
qntRPure R Implementation of R's qt() / qnt()
qpoisRPure R Implementation of R's qpois() with Tuning Parameters
qtApprCompute Approximate Quantiles of the (Non-Central)...
qtRPure R Implementation of R's C-level t-Distribution Quantiles...
qtU'uniroot()'-based Computing of t-Distribution Quantiles
rexpm1TOMS 708 Approximation REXP(x) of expm1(x) = exp(x) - 1
r_poisCompute Relative Size of i-th term of Poisson Distribution...
stirlerrStirling's Error Function - Auxiliary for Gamma, Beta, etc
DPQ documentation built on Nov. 3, 2024, 3 a.m.