| alvm.fit | Auxiliary Linear Variance Model | 
| anlvm.fit | Auxiliary Nonlinear Variance Model | 
| anscombe | Anscombe's Test for Heteroskedasticity in a Linear Regression Model | 
| avm.ci | Bootstrap Confidence Intervals for Linear Regression Error Variances | 
| avm.fwls | Apply Feasible Weighted Least Squares to a Linear Regression Model | 
| avm.vcov | Estimate Covariance Matrix of Ordinary Least Squares Estimators Using Error Variance Estimates from an Auxiliary Variance Model | 
| bamset | Ramsey's BAMSET Test for Heteroskedasticity in a Linear Regression Model | 
| bickel | Bickel's Test for Heteroskedasticity in a Linear Regression Model | 
| blus | Compute Best Linear Unbiased Scalar-Covariance (BLUS) residuals from a linear model | 
| bootlm | Nonparametric Bootstrapping of Heteroskedastic Linear Regression Models | 
| breusch_pagan | Breusch-Pagan Test for Heteroskedasticity in a Linear Regression Model | 
| carapeto_holt | Carapeto-Holt Test for Heteroskedasticity in a Linear Regression Model | 
| cook_weisberg | Cook-Weisberg Score Test for Heteroskedasticity in a Linear Regression Model | 
| countpeaks | Count peaks in a data sequence | 
| dDtrend | Probability mass function of nonparametric trend statistic D | 
| diblasi_bowman | Diblasi and Bowman's Test for Heteroskedasticity in a Linear Regression Model | 
| dpeak | Probability mass function of number of peaks in an i.i.d. random sequence | 
| dpeakdat | Probability distribution for number of peaks in a continuous, uncorrelated stochastic series | 
| dufour_etal | Dufour et al.'s Monte Carlo Test for Heteroskedasticity in a Linear Regression Model | 
| evans_king | Evans-King Tests for Heteroskedasticity in a Linear Regression Model | 
| glejser | Glejser Test for Heteroskedasticity in a Linear Regression Model | 
| godfrey_orme | Godfrey and Orme's Nonparametric Bootstrap Test for Heteroskedasticity in a Linear Regression Model | 
| goldfeld_quandt | Goldfeld-Quandt Tests for Heteroskedasticity in a Linear Regression Model | 
| GSS | Golden Section Search for Minimising Univariate Function over a Closed Interval | 
| harrison_mccabe | Harrison and McCabe's Test for Heteroskedasticity in a Linear Regression Model | 
| harvey | Harvey Test for Heteroskedasticity in a Linear Regression Model | 
| hccme | Heteroskedasticity-Consistent Covariance Matrix Estimators for Linear Regression Models | 
| hetplot | Graphical Methods for Detecting Heteroskedasticity in a Linear Regression Model | 
| honda | Honda's Test for Heteroskedasticity in a Linear Regression Model | 
| horn | Horn's Test for Heteroskedasticity in a Linear Regression Model | 
| li_yao | Li-Yao ALRT and CVT Tests for Heteroskedasticity in a Linear Regression Model | 
| pDtrend | Cumulative distribution function of nonparametric trend statistic D | 
| ppeak | Cumulative distribution function of number of peaks in an i.i.d. random sequence | 
| pRQF | Probabilities for a Ratio of Quadratic Forms in a Normal Random Vector | 
| rackauskas_zuokas | Rackauskas-Zuokas Test for Heteroskedasticity in a Linear Regression Model | 
| simonoff_tsai | Simonoff-Tsai Tests for Heteroskedasticity in a Linear Regression Model | 
| szroeter | Szroeter's Test for Heteroskedasticity in a Linear Regression Model | 
| twosidedpval | Computation of Conditional Two-Sided p-Values | 
| T_alpha | Pseudorandom numbers from Asymptotic Null Distribution of Test Statistic for Method of Rackauskas and Zuokas (2007) | 
| verbyla | Verbyla's Test for Heteroskedasticity in a Linear Regression Model | 
| white | White's Test for Heteroskedasticity in a Linear Regression Model | 
| wilcox_keselman | Wilcox and Keselman's Test for Heteroskedasticity in a Linear Regression Model | 
| yuce | Yüce's Test for Heteroskedasticity in a Linear Regression Model | 
| zhou_etal | Zhou, Song, and Thompson's Test for Heteroskedasticity in a Linear Regression Model |