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stats (version 3.2.1)

The R Stats Package

Description

R statistical functions.

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Version

Version

3.2.1

License

Part of R 3.2.1

Maintainer

R-core R-core@R-project.org

Last Published

December 12th, 2019

Functions in stats (3.2.1)

anova

Anova Tables
anova.lm

ANOVA for Linear Model Fits
acf

Auto- and Cross- Covariance and -Correlation Function Estimation
AIC

Akaike's An Information Criterion
anova.glm

Analysis of Deviance for Generalized Linear Model Fits
alias

Find Aliases (Dependencies) in a Model
acf2AR

Compute an AR Process Exactly Fitting an ACF
add1

Add or Drop All Possible Single Terms to a Model
aggregate

Compute Summary Statistics of Data Subsets
addmargins

Puts Arbitrary Margins on Multidimensional Tables or Arrays
arima.sim

Simulate from an ARIMA Model
ar

Fit Autoregressive Models to Time Series
aov

Fit an Analysis of Variance Model
ansari.test

Ansari-Bradley Test
approxfun

Interpolation Functions
arima

ARIMA Modelling of Time Series
arima0

ARIMA Modelling of Time Series -- Preliminary Version
ARMAacf

Compute Theoretical ACF for an ARMA Process
ar.ols

Fit Autoregressive Models to Time Series by OLS
anova.mlm

Comparisons between Multivariate Linear Models
ARMAtoMA

Convert ARMA Process to Infinite MA Process
ave

Group Averages Over Level Combinations of Factors
bartlett.test

Bartlett Test of Homogeneity of Variances
binom.test

Exact Binomial Test
bandwidth

Bandwidth Selectors for Kernel Density Estimation
as.hclust

Convert Objects to Class hclust
asOneSidedFormula

Convert to One-Sided Formula
biplot

Biplot of Multivariate Data
Binomial

The Binomial Distribution
Beta

The Beta Distribution
birthday

Probability of coincidences
.checkMFClasses

Functions to Check the Type of Variables passed to Model Frames
Box.test

Box-Pierce and Ljung-Box Tests
Cauchy

The Cauchy Distribution
cancor

Canonical Correlations
biplot.princomp

Biplot for Principal Components
Chisquare

The (non-central) Chi-Squared Distribution
chisq.test

Pearson's Chi-squared Test for Count Data
case+variable.names

Case and Variable Names of Fitted Models
cmdscale

Classical (Metric) Multidimensional Scaling
confint

Confidence Intervals for Model Parameters
coef

Extract Model Coefficients
constrOptim

Linearly Constrained Optimization
cor

Correlation, Variance and Covariance (Matrices)
cophenetic

Cophenetic Distances for a Hierarchical Clustering
convolve

Convolution of Sequences via FFT
complete.cases

Find Complete Cases
cor.test

Test for Association/Correlation Between Paired Samples
contrast

(Possibly Sparse) Contrast Matrices
contrasts

Get and Set Contrast Matrices
deviance

Model Deviance
deriv

Symbolic and Algorithmic Derivatives of Simple Expressions
density

Kernel Density Estimation
decompose

Classical Seasonal Decomposition by Moving Averages
cutree

Cut a Tree into Groups of Data
cov.wt

Weighted Covariance Matrices
delete.response

Modify Terms Objects
dendrapply

Apply a Function to All Nodes of a Dendrogram
df.residual

Residual Degrees-of-Freedom
cpgram

Plot Cumulative Periodogram
effects

Effects from Fitted Model
fligner.test

Fligner-Killeen Test of Homogeneity of Variances
embed

Embedding a Time Series
Distributions

Distributions in the stats package
formula

Model Formulae
fivenum

Tukey Five-Number Summaries
fitted

Extract Model Fitted Values
dummy.coef

Extract Coefficients in Original Coding
ecdf

Empirical Cumulative Distribution Function
eff.aovlist

Compute Efficiencies of Multistratum Analysis of Variance
ftable.formula

Formula Notation for Flat Contingency Tables
ftable

Flat Contingency Tables
filter

Linear Filtering on a Time Series
diffinv

Discrete Integration: Inverse of Differencing
dist

Distance Matrix Computation
formula.nls

Extract Model Formula from nls Object
fisher.test

Fisher's Exact Test for Count Data
FDist

The F Distribution
friedman.test

Friedman Rank Sum Test
fft

Fast Discrete Fourier Transform (FFT)
glm

Fitting Generalized Linear Models
Hypergeometric

The Hypergeometric Distribution
HoltWinters

Holt-Winters Filtering
glm.summaries

Accessing Generalized Linear Model Fits
kmeans

K-Means Clustering
getInitial

Get Initial Parameter Estimates
kruskal.test

Kruskal-Wallis Rank Sum Test
IQR

The Interquartile Range
glm.control

Auxiliary for Controlling GLM Fitting
is.empty.model

Test if a Model's Formula is Empty
isoreg

Isotonic / Monotone Regression
KalmanLike

Kalman Filtering
hclust

Hierarchical Clustering
medpolish

Median Polish of a Matrix
median

Median Value
ks.test

Kolmogorov-Smirnov Tests
heatmap

Draw a Heat Map
lm.summaries

Accessing Linear Model Fits
ksmooth

Kernel Regression Smoother
lm.fit

Fitter Functions for Linear Models
lm.influence

Regression Diagnostics
lm

Fitting Linear Models
ls.print

Print lsfit Regression Results
ls.diag

Compute Diagnostics for lsfit Regression Results
naprint

Adjust for Missing Values
mantelhaen.test

Cochran-Mantel-Haenszel Chi-Squared Test for Count Data
manova

Multivariate Analysis of Variance
nls.control

Control the Iterations in nls
NegBinomial

The Negative Binomial Distribution
NLSstAsymptotic

Fit the Asymptotic Regression Model
order.dendrogram

Ordering or Labels of the Leaves in a Dendrogram
power.t.test

Power calculations for one and two sample t tests
power.prop.test

Power Calculations for Two-Sample Test for Proportions
p.adjust

Adjust P-values for Multiple Comparisons
predict.HoltWinters

Prediction Function for Fitted Holt-Winters Models
predict

Model Predictions
lag.plot

Time Series Lag Plots
lag

Lag a Time Series
loadings

Print Loadings in Factor Analysis
loess.control

Set Parameters for Loess
make.link

Create a Link for GLM Families
mood.test

Mood Two-Sample Test of Scale
makepredictcall

Utility Function for Safe Prediction
Multinom

The Multinomial Distribution
na.fail

Handle Missing Values in Objects
plot.density

Plot Method for Kernel Density Estimation
plot.acf

Plot Autocovariance and Autocorrelation Functions
naresid

Adjust for Missing Values
plot.spec

Plotting Spectral Densities
plot.profile.nls

Plot a profile.nls Object
expand.model.frame

Add new variables to a model frame
factor.scope

Compute Allowed Changes in Adding to or Dropping from a Formula
family

Family Objects for Models
extractAIC

Extract AIC from a Fitted Model
Geometric

The Geometric Distribution
GammaDist

The Gamma Distribution
line

Robust Line Fitting
interaction.plot

Two-way Interaction Plot
integrate

Integration of One-Dimensional Functions
listof

A Class for Lists of (Parts of) Model Fits
identify.hclust

Identify Clusters in a Dendrogram
kernapply

Apply Smoothing Kernel
influence.measures

Regression Deletion Diagnostics
logLik

Extract Log-Likelihood
Logistic

The Logistic Distribution
loess

Local Polynomial Regression Fitting
kernel

Smoothing Kernel Objects
mahalanobis

Mahalanobis Distance
lsfit

Find the Least Squares Fit
mauchly.test

Mauchly's Test of Sphericity
mcnemar.test

McNemar's Chi-squared Test for Count Data
NLSstClosestX

Inverse Interpolation
NLSstLfAsymptote

Horizontal Asymptote on the Left Side
plot.ts

Plotting Time-Series Objects
plot.stepfun

Plot Step Functions
PP.test

Phillips-Perron Test for Unit Roots
loglin

Fitting Log-Linear Models
ppoints

Ordinates for Probability Plotting
model.extract

Extract Components from a Model Frame
model.matrix

Construct Design Matrices
nextn

Highly Composite Numbers
nlm

Non-Linear Minimization
model.tables

Compute Tables of Results from an Aov Model Fit
Lognormal

The Log Normal Distribution
lowess

Scatter Plot Smoothing
Normal

The Normal Distribution
na.contiguous

Find Longest Contiguous Stretch of non-NAs
na.action

NA Action
monthplot

Plot a Seasonal or other Subseries from a Time Series
NLSstRtAsymptote

Horizontal Asymptote on the Right Side
offset

Include an Offset in a Model Formula
oneway.test

Test for Equal Means in a One-Way Layout
pairwise.table

Tabulate p values for pairwise comparisons
plot.lm

Plot Diagnostics for an lm Object
plot.ppr

Plot Ridge Functions for Projection Pursuit Regression Fit
pairwise.wilcox.test

Pairwise Wilcoxon Rank Sum Tests
nobs

Extract the Number of Observations from a Fit.
plot.HoltWinters

Plot function for HoltWinters objects
pairwise.prop.test

Pairwise comparisons for proportions
pairwise.t.test

Pairwise t tests
plot.isoreg

Plot Method for isoreg Objects
predict.Arima

Forecast from ARIMA fits
predict.glm

Predict Method for GLM Fits
predict.lm

Predict method for Linear Model Fits
prop.test

Test of Equal or Given Proportions
predict.loess

Predict Loess Curve or Surface
ppr

Projection Pursuit Regression
prcomp

Principal Components Analysis
predict.nls

Predicting from Nonlinear Least Squares Fits
predict.smooth.spline

Predict from Smoothing Spline Fit
shapiro.test

Shapiro-Wilk Normality Test
SignRank

Distribution of the Wilcoxon Signed Rank Statistic
spec.taper

Taper a Time Series by a Cosine Bell
profile

Generic Function for Profiling Models
printCoefmat

Print Coefficient Matrices
runmed

Running Medians -- Robust Scatter Plot Smoothing
rWishart

Random Wishart Distributed Matrices
scatter.smooth

Scatter Plot with Smooth Curve Fitted by Loess
smoothEnds

End Points Smoothing (for Running Medians)
screeplot

Screeplots
sortedXyData

Create a sortedXyData Object
SSbiexp

Self-Starting Nls Biexponential model
SSD

SSD Matrix and Estimated Variance Matrix in Multivariate Models
prop.trend.test

Test for trend in proportions
residuals

Extract Model Residuals
reshape

Reshape Grouped Data
smooth

Tukey's (Running Median) Smoothing
smooth.spline

Fit a Smoothing Spline
splinefun

Interpolating Splines
SSasymp

Self-Starting Nls Asymptotic Regression Model
SSfol

Self-Starting Nls First-order Compartment Model
SSfpl

Self-Starting Nls Four-Parameter Logistic Model
numericDeriv

Evaluate Derivatives Numerically
stats-package

The R Stats Package
optim

General-purpose Optimization
optimize

One Dimensional Optimization
Poisson

The Poisson Distribution
power

Create a Power Link Object
power.anova.test

Power Calculations for Balanced One-Way Analysis of Variance Tests
poisson.test

Exact Poisson tests
print.power.htest

Print Methods for Hypothesis Tests and Power Calculation Objects
profile.nls

Method for Profiling nls Objects
print.ts

Printing and Formatting of Time-Series Objects
preplot

Pre-computations for a Plotting Object
princomp

Principal Components Analysis
quantile

Sample Quantiles
r2dtable

Random 2-way Tables with Given Marginals
reorder.default

Reorder Levels of a Factor
sd

Standard Deviation
replications

Number of Replications of Terms
se.contrast

Standard Errors for Contrasts in Model Terms
spec.ar

Estimate Spectral Density of a Time Series from AR Fit
spec.pgram

Estimate Spectral Density of a Time Series by a Smoothed Periodogram
proj

Projections of Models
read.ftable

Manipulate Flat Contingency Tables
rect.hclust

Draw Rectangles Around Hierarchical Clusters
selfStart

Construct Self-starting Nonlinear Models
setNames

Set the Names in an Object
SSasympOff

Self-Starting Nls Asymptotic Regression Model with an Offset
SSasympOrig

Self-Starting Nls Asymptotic Regression Model through the Origin
termplot

Plot Regression Terms
terms.formula

Construct a terms Object from a Formula
stlmethods

Methods for STL Objects
ts.plot

Plot Multiple Time Series
StructTS

Fit Structural Time Series
supsmu

Friedman's SuperSmoother
terms

Model Terms
symnum

Symbolic Number Coding
terms.object

Description of Terms Objects
update

Update and Re-fit a Model Call
weighted.residuals

Compute Weighted Residuals
var.test

F Test to Compare Two Variances
start

Encode the Terminal Times of Time Series
weights

Extract Model Weights
stat.anova

GLM Anova Statistics
stepfun

Step Functions - Creation and Class
stl

Seasonal Decomposition of Time Series by Loess
t.test

Student's t-Test
TDist

The Student t Distribution
TukeyHSD

Compute Tukey Honest Significant Differences
step

Choose a model by AIC in a Stepwise Algorithm
Uniform

The Uniform Distribution
tsdiag

Diagnostic Plots for Time-Series Fits
summary.nls

Summarizing Non-Linear Least-Squares Model Fits
summary.princomp

Summary method for Principal Components Analysis
tsp

Tsp Attribute of Time-Series-like Objects
varimax

Rotation Methods for Factor Analysis
qqnorm

Quantile-Quantile Plots
vcov

Calculate Variance-Covariance Matrix for a Fitted Model Object
quade.test

Quade Test
relevel

Reorder Levels of Factor
reorder.dendrogram

Reorder a Dendrogram
SSgompertz

Self-Starting Nls Gompertz Growth Model
summary.aov

Summarize an Analysis of Variance Model
SSlogis

Self-Starting Nls Logistic Model
summary.glm

Summarizing Generalized Linear Model Fits
summary.lm

Summarizing Linear Model Fits
summary.manova

Summary Method for Multivariate Analysis of Variance
time

Sampling Times of Time Series
toeplitz

Form Symmetric Toeplitz Matrix
Tukey

The Studentized Range Distribution
tsSmooth

Use Fixed-Interval Smoothing on Time Series
window

Time Windows
spectrum

Spectral Density Estimation
C

Sets Contrasts for a Factor
SSmicmen

Self-Starting Nls Michaelis-Menten Model
SSweibull

Self-Starting Nls Weibull Growth Curve Model
stats-defunct

Defunct Functions in Package stats
stats-deprecated

Deprecated Functions in Package stats
ts-methods

Methods for Time Series Objects
ts

Time-Series Objects
uniroot

One Dimensional Root (Zero) Finding
update.formula

Model Updating
Weibull

The Weibull Distribution
wilcox.test

Wilcoxon Rank Sum and Signed Rank Tests
ts.union

Bind Two or More Time Series
Wilcoxon

Distribution of the Wilcoxon Rank Sum Statistic
weighted.mean

Weighted Arithmetic Mean