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stats (version 3.4.0)

The R Stats Package

Description

R statistical functions.

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Version

Version

3.4.0

License

Part of R 3.4.0

Last Published

December 12th, 2019

Functions in stats (3.4.0)

Exponential

The Exponential Distribution
FDist

The F Distribution
IQR

The Interquartile Range
KalmanLike

Kalman Filtering
NLSstRtAsymptote

Horizontal Asymptote on the Right Side
NegBinomial

The Negative Binomial Distribution
SSlogis

Self-Starting Nls Logistic Model
SSmicmen

Self-Starting Nls Michaelis-Menten Model
Tukey

The Studentized Range Distribution
TukeyHSD

Compute Tukey Honest Significant Differences
anova.mlm

Comparisons between Multivariate Linear Models
ansari.test

Ansari-Bradley Test
Box.test

Box-Pierce and Ljung-Box Tests
cancor

Canonical Correlations
cutree

Cut a Tree into Groups of Data
Chisquare

The (non-central) Chi-Squared Distribution
Distributions

Distributions in the stats package
SSasympOff

Self-Starting Nls Asymptotic Regression Model with an Offset
SSasympOrig

Self-Starting Nls Asymptotic Regression Model through the Origin
acf2AR

Compute an AR Process Exactly Fitting an ACF
add1

Add or Drop All Possible Single Terms to a Model
decompose

dist

Distance Matrix Computation
dummy.coef

Extract Coefficients in Original Coding
filter

Linear Filtering on a Time Series
fisher.test

Fisher's Exact Test for Count Data
ftable

Flat Contingency Tables
ftable.formula

Formula Notation for Flat Contingency Tables
ar

Fit Autoregressive Models to Time Series
ar.ols

Fit Autoregressive Models to Time Series by OLS
bandwidth

Bandwidth Selectors for Kernel Density Estimation
bartlett.test

Bartlett Test of Homogeneity of Variances
coef

Extract Model Coefficients
complete.cases

Find Complete Cases
ks.test

Kolmogorov-Smirnov Tests
ksmooth

Kernel Regression Smoother
line

Robust Line Fitting
cor

Correlation, Variance and Covariance (Matrices)
cor.test

Test for Association/Correlation Between Paired Samples
df.residual

Residual Degrees-of-Freedom
listof

A Class for Lists of (Parts of) Model Fits
loess.control

Set Parameters for Loess
logLik

Extract Log-Likelihood
diffinv

Discrete Integration: Inverse of Differencing
glm.control

Auxiliary for Controlling GLM Fitting
glm.summaries

Accessing Generalized Linear Model Fits
AIC

Akaike's An Information Criterion
Logistic

The Logistic Distribution
Lognormal

The Log Normal Distribution
StructTS

Fit Structural Time Series
ARMAacf

Compute Theoretical ACF for an ARMA Process
Multinom

The Multinomial Distribution
NLSstAsymptotic

Fit the Asymptotic Regression Model
TDist

The Student t Distribution
Wilcoxon

Distribution of the Wilcoxon Rank Sum Statistic
acf

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

Fit an Analysis of Variance Model
approxfun

Interpolation Functions
integrate

Integration of One-Dimensional Functions
interaction.plot

Two-way Interaction Plot
lm.summaries

Accessing Linear Model Fits
lm.fit

Fitter Functions for Linear Models
model.frame

Extracting the Model Frame from a Formula or Fit
arima0

ARIMA Modelling of Time Series -- Preliminary Version
medpolish

Median Polish (Robust Twoway Decomposition) of a Matrix
model.extract

Extract Components from a Model Frame
na.contiguous

Find Longest Contiguous Stretch of non-NAs
model.matrix

Construct Design Matrices
oneway.test

Test for Equal Means in a One-Way Layout
optim

General-purpose Optimization
na.fail

Handle Missing Values in Objects
nls.control

Control the Iterations in nls
nobs

pairwise.wilcox.test

Pairwise Wilcoxon Rank Sum Tests
plot.HoltWinters

Plot function for HoltWinters objects
plot.spec

Plotting Spectral Densities
Normal

The Normal Distribution
Poisson

The Poisson Distribution
SSweibull

Self-Starting Nls Weibull Growth Curve Model
plot.acf

Plot Autocovariance and Autocorrelation Functions
plot.density

Plot Method for Kernel Density Estimation
plot.ts

Plotting Time-Series Objects
as.hclust

Convert Objects to Class hclust
biplot.princomp

birthday

Probability of coincidences
SignRank

Distribution of the Wilcoxon Signed Rank Statistic
Uniform

The Uniform Distribution
Weibull

The Weibull Distribution
plot.stepfun

Plot Step Functions
ppoints

Ordinates for Probability Plotting
ppr

Projection Pursuit Regression
poisson.test

Exact Poisson tests
predict.glm

Predict Method for GLM Fits
predict.lm

Predict method for Linear Model Fits
princomp

Principal Components Analysis
print.power.htest

Print Methods for Hypothesis Tests and Power Calculation Objects
prop.trend.test

Test for trend in proportions
profile

Generic Function for Profiling Models
profile.nls

Method for Profiling nls Objects
read.ftable

Manipulate Flat Contingency Tables
alias

Find Aliases (Dependencies) in a Model
anova

Anova Tables
binom.test

Exact Binomial Test
rect.hclust

Draw Rectangles Around Hierarchical Clusters
relevel

Reorder Levels of Factor
reorder.dendrogram

Reorder a Dendrogram
biplot

Biplot of Multivariate Data
case+variable.names

Case and Variable Names of Fitted Models
.checkMFClasses

Functions to Check the Type of Variables passed to Model Frames
contrast

(Possibly Sparse) Contrast Matrices
contrasts

Get and Set Contrast Matrices
ecdf

Empirical Cumulative Distribution Function
eff.aovlist

Compute Efficiencies of Multistratum Analysis of Variance
family

Family Objects for Models
cov.wt

Weighted Covariance Matrices
cpgram

deriv

Symbolic and Algorithmic Derivatives of Simple Expressions
ARMAtoMA

Convert ARMA Process to Infinite MA Process
spec.taper

Taper a Time Series by a Cosine Bell
spectrum

Spectral Density Estimation
summary.nls

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

Summary method for Principal Components Analysis
ts.union

Bind Two or More Time Series
tsSmooth

Use Fixed-Interval Smoothing on Time Series
deviance

Model Deviance
factanal

Factor Analysis
factor.scope

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

The Beta Distribution
HoltWinters

Holt-Winters Filtering
Hypergeometric

The Hypergeometric Distribution
qqnorm

Quantile-Quantile Plots
sigma

Extract Residual Standard Deviation 'Sigma'
simulate

Simulate Responses
spec.ar

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

Estimate Spectral Density of a Time Series by a Smoothed
summary.aov

Summarize an Analysis of Variance Model
summary.glm

Summarizing Generalized Linear Model Fits
termplot

Plot Regression Terms
update.formula

Model Updating
var.test

F Test to Compare Two Variances
window

Time Windows
fft

Fast Discrete Fourier Transform (FFT)
identify.hclust

Identify Clusters in a Dendrogram
t.test

Student's t-Test
NLSstClosestX

Inverse Interpolation
NLSstLfAsymptote

Horizontal Asymptote on the Left Side
SSbiexp

Self-Starting Nls Biexponential model
SSfol

Self-Starting Nls First-order Compartment Model
addmargins

aggregate

Compute Summary Statistics of Data Subsets
formula.nls

Extract Model Formula from nls Object
friedman.test

Friedman Rank Sum Test
xtabs

Cross Tabulation
weights

Extract Model Weights
wilcox.test

Wilcoxon Rank Sum and Signed Rank Tests
influence.measures

Regression Deletion Diagnostics
is.empty.model

Test if a Model's Formula is Empty
isoreg

Isotonic / Monotone Regression
loglin

Fitting Log-Linear Models
lowess

Scatter Plot Smoothing
mantelhaen.test

Cochran-Mantel-Haenszel Chi-Squared Test for Count Data
anova.glm

Analysis of Deviance for Generalized Linear Model Fits
anova.lm

ANOVA for Linear Model Fits
arima

ARIMA Modelling of Time Series
kmeans

kruskal.test

Kruskal-Wallis Rank Sum Test
loadings

Print Loadings in Factor Analysis
arima.sim

Simulate from an ARIMA Model
chisq.test

Pearson's Chi-squared Test for Count Data
cmdscale

Classical (Metric) Multidimensional Scaling
mauchly.test

Mauchly's Test of Sphericity
naresid

naprint

optimize

One Dimensional Optimization
order.dendrogram

Ordering or Labels of the Leaves in a Dendrogram
p.adjust

Adjust P-values for Multiple Comparisons
pairwise.prop.test

Pairwise comparisons for proportions
power.anova.test

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

Power Calculations for Two-Sample Test for Proportions
convolve

Convolution of Sequences via FFT
cophenetic

Cophenetic Distances for a Hierarchical Clustering
delete.response

Modify Terms Objects
loess

Local Polynomial Regression Fitting
lsfit

Find the Least Squares Fit
mad

Median Absolute Deviation
Binomial

The Binomial Distribution
predict

Model Predictions
predict.Arima

Forecast from ARIMA fits
print.ts

Printing and Formatting of Time-Series Objects
makepredictcall

Utility Function for Safe Prediction
manova

Multivariate Analysis of Variance
model.tables

Compute Tables of Results from an Aov Model Fit
printCoefmat

Print Coefficient Matrices
proj

Projections of Models
prop.test

Test of Equal or Given Proportions
reorder.default

Reorder Levels of a Factor
replications

Number of Replications of Terms
se.contrast

Standard Errors for Contrasts in Model Terms
Cauchy

The Cauchy Distribution
GammaDist

The Gamma Distribution
Geometric

The Geometric Distribution
SSD

SSD Matrix and Estimated Variance Matrix in Multivariate Models
SSasymp

Self-Starting Nls Asymptotic Regression Model
SSfpl

Self-Starting Nls Four-Parameter Logistic Model
SSgompertz

Self-Starting Nls Gompertz Growth Model
asOneSidedFormula

Convert to One-Sided Formula
ave

Group Averages Over Level Combinations of Factors
confint

Confidence Intervals for Model Parameters
selfStart

Construct Self-starting Nonlinear Models
stl

Seasonal Decomposition of Time Series by Loess
stlmethods

Methods for STL Objects
monthplot

numericDeriv

Evaluate Derivatives Numerically
offset

Include an Offset in a Model Formula
constrOptim

Linearly Constrained Optimization
dendrogram

General Tree Structures
density

Kernel Density Estimation
dendrapply

Apply a Function to All Nodes of a Dendrogram
effects

Effects from Fitted Model
embed

Embedding a Time Series
expand.model.frame

Add new variables to a model frame
extractAIC

Extract AIC from a Fitted Model
fligner.test

Fligner-Killeen Test of Homogeneity of Variances
formula

Model Formulae
hclust

Hierarchical Clustering
heatmap

Draw a Heat Map
fitted

Extract Model Fitted Values
fivenum

Tukey Five-Number Summaries
getInitial

Get Initial Parameter Estimates
plot.isoreg

Plot Method for isoreg Objects
plot.lm

Plot Diagnostics for an lm Object
poly

Compute Orthogonal Polynomials
power

Create a Power Link Object
power.t.test

Power calculations for one and two sample t tests
PP.test

Phillips-Perron Test for Unit Roots
kernapply

Apply Smoothing Kernel
glm

Fitting Generalized Linear Models
lag

Lag a Time Series
lag.plot

Time Series Lag Plots
mahalanobis

Mahalanobis Distance
predict.smooth.spline

Predict from Smoothing Spline Fit
preplot

Pre-computations for a Plotting Object
r2dtable

Random 2-way Tables with Given Marginals
rWishart

Random Wishart Distributed Matrices
reshape

Reshape Grouped Data
residuals

Extract Model Residuals
make.link

Create a Link for GLM Families
mcnemar.test

McNemar's Chi-squared Test for Count Data
median

Median Value
terms.object

Description of Terms Objects
time

Sampling Times of Time Series
uniroot

One Dimensional Root (Zero) Finding
update

Update and Re-fit a Model Call
weighted.mean

Weighted Arithmetic Mean
weighted.residuals

Compute Weighted Residuals
smooth

Tukey's (Running Median) Smoothing
smooth.spline

Fit a Smoothing Spline
stat.anova

GLM Anova Statistics
nextn

Highly Composite Numbers
nlm

Non-Linear Minimization
plot.ppr

Plot Ridge Functions for Projection Pursuit Regression Fit
stats-defunct

Defunct Functions in Package
step

stepfun

Step Functions - Creation and Class
plot.profile.nls

Plot a profile.nls Object
predict.loess

Predict Loess Curve or Surface
predict.nls

Predicting from Nonlinear Least Squares Fits
terms

Model Terms
terms.formula

Construct a terms Object from a Formula
ts

Time-Series Objects
quade.test

Quade Test
quantile

Sample Quantiles
runmed

Running Medians -- Robust Scatter Plot Smoothing
kernel

Smoothing Kernel Objects
lm

Fitting Linear Models
lm.influence

Regression Diagnostics
scatter.smooth

Scatter Plot with Smooth Curve Fitted by Loess
setNames

Set the Names in an Object
shapiro.test

Shapiro-Wilk Normality Test
ts.plot

Plot Multiple Time Series
ls.diag

Compute Diagnostics for
ls.print

Print
mood.test

Mood Two-Sample Test of Scale
na.action

NA Action
nlminb

Optimization using PORT routines
nls

Nonlinear Least Squares
splinefun

Interpolating Splines
start

Encode the Terminal Times of Time Series
summary.lm

Summarizing Linear Model Fits
pairwise.t.test

Pairwise t tests
pairwise.table

Tabulate p values for pairwise comparisons
prcomp

Principal Components Analysis
summary.manova

Summary Method for Multivariate Analysis of Variance
supsmu

Friedman's SuperSmoother
symnum

Symbolic Number Coding
tsdiag

Diagnostic Plots for Time-Series Fits
tsp

Tsp Attribute of Time-Series-like Objects
C

Sets Contrasts for a Factor
predict.HoltWinters

Prediction Function for Fitted Holt-Winters Models
screeplot

Screeplots
sd

Standard Deviation
smoothEnds

End Points Smoothing (for Running Medians)
sortedXyData

Create a
stats-deprecated

Deprecated Functions in Package
stats-package

toeplitz

Form Symmetric Toeplitz Matrix
ts-methods

Methods for Time Series Objects
varimax

Rotation Methods for Factor Analysis
vcov