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<h1>Main Package of Venables and Ripley's MASS <img class="toplogo" src="../../../doc/html/logo.jpg" alt="[R logo]"></h1>
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<h2>Documentation for package ‘MASS’ version 7.2-44</h2>
<h2>Help Pages</h2>
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<a href="#A">A</a>
<a href="#B">B</a>
<a href="#C">C</a>
<a href="#D">D</a>
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<a href="#misc">misc</a>
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<table width="100%">
<tr><td width="25%"><a href="rational.html">.rat</a></td>
<td>Rational Approximation </td></tr>
</table>
<h2><a name="A">-- A --</a></h2>
<table width="100%">
<tr><td width="25%"><a href="abbey.html">abbey</a></td>
<td>Determinations of Nickel Content </td></tr>
<tr><td width="25%"><a href="accdeaths.html">accdeaths</a></td>
<td>Accidental Deaths in the US 1973-1978 </td></tr>
<tr><td width="25%"><a href="addterm.html">addterm</a></td>
<td>Try All One-Term Additions to a Model </td></tr>
<tr><td width="25%"><a href="Aids2.html">Aids2</a></td>
<td>Australian AIDS Survival Data </td></tr>
<tr><td width="25%"><a href="Animals.html">Animals</a></td>
<td>Brain and Body Weights for 28 Species </td></tr>
<tr><td width="25%"><a href="anorexia.html">anorexia</a></td>
<td>Anorexia Data on Weight Change </td></tr>
<tr><td width="25%"><a href="anova.negbin.html">anova.negbin</a></td>
<td>Likelihood Ratio Tests for Negative Binomial GLMs </td></tr>
<tr><td width="25%"><a href="area.html">area</a></td>
<td>Adaptive Numerical Integration </td></tr>
<tr><td width="25%"><a href="fractions.html">as.character.fractions</a></td>
<td>Rational Approximation </td></tr>
<tr><td width="25%"><a href="fractions.html">as.fractions</a></td>
<td>Rational Approximation </td></tr>
</table>
<h2><a name="B">-- B --</a></h2>
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<tr><td width="25%"><a href="bacteria.html">bacteria</a></td>
<td>Presence of Bacteria after Drug Treatments </td></tr>
<tr><td width="25%"><a href="bandwidth.nrd.html">bandwidth.nrd</a></td>
<td>Bandwidth for density() via Normal Reference Distribution </td></tr>
<tr><td width="25%"><a href="bcv.html">bcv</a></td>
<td>Biased Cross-Validation for Bandwidth Selection </td></tr>
<tr><td width="25%"><a href="beav1.html">beav1</a></td>
<td>Body Temperature Series of Beaver 1 </td></tr>
<tr><td width="25%"><a href="beav2.html">beav2</a></td>
<td>Body Temperature Series of Beaver 2 </td></tr>
<tr><td width="25%"><a href="biopsy.html">biopsy</a></td>
<td>Biopsy Data on Breast Cancer Patients </td></tr>
<tr><td width="25%"><a href="birthwt.html">birthwt</a></td>
<td>Risk Factors Associated with Low Infant Birth Weight </td></tr>
<tr><td width="25%"><a href="Boston.html">Boston</a></td>
<td>Housing Values in Suburbs of Boston </td></tr>
<tr><td width="25%"><a href="boxcox.html">boxcox</a></td>
<td>Box-Cox Transformations for Linear Models </td></tr>
</table>
<h2><a name="C">-- C --</a></h2>
<table width="100%">
<tr><td width="25%"><a href="cabbages.html">cabbages</a></td>
<td>Data from a cabbage field trial </td></tr>
<tr><td width="25%"><a href="caith.html">caith</a></td>
<td>Colours of Eyes and Hair of People in Caithness </td></tr>
<tr><td width="25%"><a href="Cars93.html">Cars93</a></td>
<td>Data from 93 Cars on Sale in the USA in 1993 </td></tr>
<tr><td width="25%"><a href="cats.html">cats</a></td>
<td>Anatomical Data from Domestic Cats </td></tr>
<tr><td width="25%"><a href="cement.html">cement</a></td>
<td>Heat Evolved by Setting Cements </td></tr>
<tr><td width="25%"><a href="chem.html">chem</a></td>
<td>Copper in Wholemeal Flour </td></tr>
<tr><td width="25%"><a href="fitdistr.html">coef.fitdistr</a></td>
<td>Maximum-likelihood Fitting of Univariate Distributions </td></tr>
<tr><td width="25%"><a href="lda.html">coef.lda</a></td>
<td>Linear Discriminant Analysis </td></tr>
<tr><td width="25%"><a href="con2tr.html">con2tr</a></td>
<td>Convert Lists to Data Frames for use by Trellis </td></tr>
<tr><td width="25%"><a href="confint.html">confint.glm</a></td>
<td>Confidence Intervals for Model Parameters </td></tr>
<tr><td width="25%"><a href="confint.html">confint.nls</a></td>
<td>Confidence Intervals for Model Parameters </td></tr>
<tr><td width="25%"><a href="confint.html">confint.profile.glm</a></td>
<td>Confidence Intervals for Model Parameters </td></tr>
<tr><td width="25%"><a href="confint.html">confint.profile.nls</a></td>
<td>Confidence Intervals for Model Parameters </td></tr>
<tr><td width="25%"><a href="contr.sdif.html">contr.sdif</a></td>
<td>Successive Differences contrast coding </td></tr>
<tr><td width="25%"><a href="coop.html">coop</a></td>
<td>Co-operative Trial in Analytical Chemistry </td></tr>
<tr><td width="25%"><a href="corresp.html">corresp</a></td>
<td>Simple Correspondence Analysis </td></tr>
<tr><td width="25%"><a href="cov.rob.html">cov.mcd</a></td>
<td>Resistant Estimation of Multivariate Location and Scatter </td></tr>
<tr><td width="25%"><a href="cov.rob.html">cov.mve</a></td>
<td>Resistant Estimation of Multivariate Location and Scatter </td></tr>
<tr><td width="25%"><a href="cov.rob.html">cov.rob</a></td>
<td>Resistant Estimation of Multivariate Location and Scatter </td></tr>
<tr><td width="25%"><a href="cov.trob.html">cov.trob</a></td>
<td>Covariance Estimation for Multivariate t Distribution </td></tr>
<tr><td width="25%"><a href="cpus.html">cpus</a></td>
<td>Performance of Computer CPUs </td></tr>
<tr><td width="25%"><a href="crabs.html">crabs</a></td>
<td>Morphological Measurements on Leptograpsus Crabs </td></tr>
<tr><td width="25%"><a href="Cushings.html">Cushings</a></td>
<td>Diagnostic Tests on Patients with Cushing's Syndrome </td></tr>
</table>
<h2><a name="D">-- D --</a></h2>
<table width="100%">
<tr><td width="25%"><a href="DDT.html">DDT</a></td>
<td>DDT in Kale </td></tr>
<tr><td width="25%"><a href="deaths.html">deaths</a></td>
<td>Monthly Deaths from Lung Diseases in the UK </td></tr>
<tr><td width="25%"><a href="denumerate.html">denumerate</a></td>
<td>Transform an Allowable Formula for 'loglm' into one for 'terms' </td></tr>
<tr><td width="25%"><a href="dose.p.html">dose.p</a></td>
<td>Predict Doses for Binomial Assay model </td></tr>
<tr><td width="25%"><a href="drivers.html">drivers</a></td>
<td>Deaths of Car Drivers in Great Britain 1969-84 </td></tr>
<tr><td width="25%"><a href="dropterm.html">dropterm</a></td>
<td>Try All One-Term Deletions from a Model </td></tr>
</table>
<h2><a name="E">-- E --</a></h2>
<table width="100%">
<tr><td width="25%"><a href="eagles.html">eagles</a></td>
<td>Foraging Ecology of Bald Eagles </td></tr>
<tr><td width="25%"><a href="epil.html">epil</a></td>
<td>Seizure Counts for Epileptics </td></tr>
<tr><td width="25%"><a href="eqscplot.html">eqscplot</a></td>
<td>Plots with Geometrically Equal Scales </td></tr>
<tr><td width="25%"><a href="stepAIC.html">extractAIC.gls</a></td>
<td>Choose a model by AIC in a Stepwise Algorithm </td></tr>
<tr><td width="25%"><a href="stepAIC.html">extractAIC.lme</a></td>
<td>Choose a model by AIC in a Stepwise Algorithm </td></tr>
</table>
<h2><a name="F">-- F --</a></h2>
<table width="100%">
<tr><td width="25%"><a href="glm.nb.html">family.negbin</a></td>
<td>Fit a Negative Binomial Generalized Linear Model </td></tr>
<tr><td width="25%"><a href="farms.html">farms</a></td>
<td>Ecological Factors in Farm Management </td></tr>
<tr><td width="25%"><a href="fgl.html">fgl</a></td>
<td>Measurements of Forensic Glass Fragments </td></tr>
<tr><td width="25%"><a href="fitdistr.html">fitdistr</a></td>
<td>Maximum-likelihood Fitting of Univariate Distributions </td></tr>
<tr><td width="25%"><a href="forbes.html">forbes</a></td>
<td>Forbes' Data on Boiling Points in the Alps </td></tr>
<tr><td width="25%"><a href="fractions.html">fractions</a></td>
<td>Rational Approximation </td></tr>
</table>
<h2><a name="G">-- G --</a></h2>
<table width="100%">
<tr><td width="25%"><a href="GAGurine.html">GAGurine</a></td>
<td>Level of GAG in Urine of Children </td></tr>
<tr><td width="25%"><a href="galaxies.html">galaxies</a></td>
<td>Velocities for 82 Galaxies </td></tr>
<tr><td width="25%"><a href="gamma.dispersion.html">gamma.dispersion</a></td>
<td>Calculate the MLE of the Gamma Dispersion Parameter in a GLM Fit </td></tr>
<tr><td width="25%"><a href="gamma.shape.glm.html">gamma.shape</a></td>
<td>Estimate the Shape Parameter of the Gamma Distribution in a GLM Fit </td></tr>
<tr><td width="25%"><a href="gehan.html">gehan</a></td>
<td>Remission Times of Leukaemia Patients </td></tr>
<tr><td width="25%"><a href="genotype.html">genotype</a></td>
<td>Rat Genotype Data </td></tr>
<tr><td width="25%"><a href="geyser.html">geyser</a></td>
<td>Old Faithful Geyser Data</td></tr>
<tr><td width="25%"><a href="gilgais.html">gilgais</a></td>
<td>Line Transect of Soil in Gilgai Territory </td></tr>
<tr><td width="25%"><a href="ginv.html">ginv</a></td>
<td>Generalized Inverse of a Matrix </td></tr>
<tr><td width="25%"><a href="glm.convert.html">glm.convert</a></td>
<td>Change a Negative Binomial fit to a GLM fit </td></tr>
<tr><td width="25%"><a href="glm.nb.html">glm.nb</a></td>
<td>Fit a Negative Binomial Generalized Linear Model </td></tr>
<tr><td width="25%"><a href="glmmPQL.html">glmmPQL</a></td>
<td>Fit Generalized Linear Mixed Models via PQL </td></tr>
</table>
<h2><a name="H">-- H --</a></h2>
<table width="100%">
<tr><td width="25%"><a href="hills.html">hills</a></td>
<td>Record Times in Scottish Hill Races </td></tr>
<tr><td width="25%"><a href="hist.scott.html">hist.FD</a></td>
<td>Plot a Histogram with Automatic Bin Width Selection </td></tr>
<tr><td width="25%"><a href="hist.scott.html">hist.scott</a></td>
<td>Plot a Histogram with Automatic Bin Width Selection </td></tr>
<tr><td width="25%"><a href="housing.html">housing</a></td>
<td>Frequency Table from a Copenhagen Housing Conditions Survey </td></tr>
<tr><td width="25%"><a href="huber.html">huber</a></td>
<td>Huber M-estimator of Location with MAD Scale </td></tr>
<tr><td width="25%"><a href="hubers.html">hubers</a></td>
<td>Huber Proposal 2 Robust Estimator of Location and/or Scale </td></tr>
</table>
<h2><a name="I">-- I --</a></h2>
<table width="100%">
<tr><td width="25%"><a href="immer.html">immer</a></td>
<td>Yields from a Barley Field Trial </td></tr>
<tr><td width="25%"><a href="Insurance.html">Insurance</a></td>
<td>Numbers of Car Insurance claims </td></tr>
<tr><td width="25%"><a href="fractions.html">is.fractions</a></td>
<td>Rational Approximation </td></tr>
<tr><td width="25%"><a href="isoMDS.html">isoMDS</a></td>
<td>Kruskal's Non-metric Multidimensional Scaling </td></tr>
</table>
<h2><a name="K">-- K --</a></h2>
<table width="100%">
<tr><td width="25%"><a href="kde2d.html">kde2d</a></td>
<td>Two-Dimensional Kernel Density Estimation </td></tr>
</table>
<h2><a name="L">-- L --</a></h2>
<table width="100%">
<tr><td width="25%"><a href="lda.html">lda</a></td>
<td>Linear Discriminant Analysis </td></tr>
<tr><td width="25%"><a href="ldahist.html">ldahist</a></td>
<td>Histograms or Density Plots of Multiple Groups </td></tr>
<tr><td width="25%"><a href="leuk.html">leuk</a></td>
<td>Survival Times and White Blood Counts for Leukaemia Patients </td></tr>
<tr><td width="25%"><a href="lm.gls.html">lm.gls</a></td>
<td>Fit Linear Models by Generalized Least Squares </td></tr>
<tr><td width="25%"><a href="lm.ridge.html">lm.ridge</a></td>
<td>Ridge Regression </td></tr>
<tr><td width="25%"><a href="lqs.html">lmsreg</a></td>
<td>Resistant Regression </td></tr>
<tr><td width="25%"><a href="stdres.html">lmwork</a></td>
<td>Extract Standardized Residuals from a Linear Model </td></tr>
<tr><td width="25%"><a href="fitdistr.html">logLik.fitdistr</a></td>
<td>Maximum-likelihood Fitting of Univariate Distributions </td></tr>
<tr><td width="25%"><a href="glm.nb.html">logLik.negbin</a></td>
<td>Fit a Negative Binomial Generalized Linear Model </td></tr>
<tr><td width="25%"><a href="loglm.html">loglm</a></td>
<td>Fit Log-Linear Models by Iterative Proportional Scaling </td></tr>
<tr><td width="25%"><a href="logtrans.html">logtrans</a></td>
<td>Estimate log Transformation Parameter </td></tr>
<tr><td width="25%"><a href="lqs.html">lqs</a></td>
<td>Resistant Regression </td></tr>
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