Learn R Programming

⚠️There's a newer version (3.6.2) of this package.Take me there.

stats (version 3.3.2)

The R Stats Package

Description

R statistical functions.

Copy Link

Version

Version

3.3.2

License

Part of R 3.3.2

Last Published

December 12th, 2019

Functions in stats (3.3.2)

alias

Find Aliases (Dependencies) in a Model
acf2AR

Compute an AR Process Exactly Fitting an ACF
anova.lm

ANOVA for Linear Model Fits
anova.glm

Analysis of Deviance for Generalized Linear Model Fits
add1

Add or Drop All Possible Single Terms to a Model
aggregate

Compute Summary Statistics of Data Subsets
AIC

Akaike's An Information Criterion
anova

Anova Tables
acf

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

ar

Fit Autoregressive Models to Time Series
approxfun

Interpolation Functions
ARMAacf

Compute Theoretical ACF for an ARMA Process
ar.ols

Fit Autoregressive Models to Time Series by OLS
aov

Fit an Analysis of Variance Model
arima

ARIMA Modelling of Time Series
arima0

ARIMA Modelling of Time Series -- Preliminary Version
ansari.test

Ansari-Bradley Test
anova.mlm

Comparisons between Multivariate Linear Models
arima.sim

Simulate from an ARIMA Model
asOneSidedFormula

Convert to One-Sided Formula
ARMAtoMA

Convert ARMA Process to Infinite MA Process
ave

Group Averages Over Level Combinations of Factors
binom.test

Exact Binomial Test
Beta

The Beta Distribution
Binomial

The Binomial Distribution
bartlett.test

Bartlett Test of Homogeneity of Variances
bandwidth

Bandwidth Selectors for Kernel Density Estimation
biplot

Biplot of Multivariate Data
as.hclust

Convert Objects to Class hclust
biplot.princomp

.checkMFClasses

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

Box-Pierce and Ljung-Box Tests
Chisquare

The (non-central) Chi-Squared Distribution
case+variable.names

Case and Variable Names of Fitted Models
cancor

Canonical Correlations
Cauchy

The Cauchy Distribution
birthday

Probability of coincidences
cmdscale

Classical (Metric) Multidimensional Scaling
chisq.test

Pearson's Chi-squared Test for Count Data
contrast

(Possibly Sparse) Contrast Matrices
coef

Extract Model Coefficients
contrasts

Get and Set Contrast Matrices
convolve

Convolution of Sequences via FFT
complete.cases

Find Complete Cases
cor

Correlation, Variance and Covariance (Matrices)
cophenetic

Cophenetic Distances for a Hierarchical Clustering
cor.test

Test for Association/Correlation Between Paired Samples
constrOptim

Linearly Constrained Optimization
confint

Confidence Intervals for Model Parameters
delete.response

Modify Terms Objects
decompose

cutree

Cut a Tree into Groups of Data
dendrapply

Apply a Function to All Nodes of a Dendrogram
dendrogram

General Tree Structures
deviance

Model Deviance
deriv

Symbolic and Algorithmic Derivatives of Simple Expressions
cpgram

cov.wt

Weighted Covariance Matrices
density

Kernel Density Estimation
ecdf

Empirical Cumulative Distribution Function
expand.model.frame

Add new variables to a model frame
eff.aovlist

Compute Efficiencies of Multistratum Analysis of Variance
embed

Embedding a Time Series
diffinv

Discrete Integration: Inverse of Differencing
effects

Effects from Fitted Model
dummy.coef

Extract Coefficients in Original Coding
df.residual

Residual Degrees-of-Freedom
dist

Distance Matrix Computation
Distributions

Distributions in the stats package
fft

Fast Discrete Fourier Transform (FFT)
formula.nls

Extract Model Formula from nls Object
formula

Model Formulae
filter

Linear Filtering on a Time Series
integrate

Integration of One-Dimensional Functions
interaction.plot

Two-way Interaction Plot
family

Family Objects for Models
FDist

The F Distribution
influence.measures

Regression Deletion Diagnostics
identify.hclust

Identify Clusters in a Dendrogram
isoreg

Isotonic / Monotone Regression
kmeans

lm.summaries

Accessing Linear Model Fits
KalmanLike

Kalman Filtering
kruskal.test

Kruskal-Wallis Rank Sum Test
lm.fit

Fitter Functions for Linear Models
make.link

Create a Link for GLM Families
Geometric

The Geometric Distribution
makepredictcall

Utility Function for Safe Prediction
getInitial

Get Initial Parameter Estimates
kernapply

Apply Smoothing Kernel
logLik

Extract Log-Likelihood
kernel

Smoothing Kernel Objects
mantelhaen.test

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

Multivariate Analysis of Variance
loglin

Fitting Log-Linear Models
mood.test

Mood Two-Sample Test of Scale
monthplot

nls.control

Control the Iterations in nls
NLSstAsymptotic

Fit the Asymptotic Regression Model
pairwise.prop.test

Pairwise comparisons for proportions
pairwise.t.test

Pairwise t tests
fitted

Extract Model Fitted Values
fisher.test

Fisher's Exact Test for Count Data
ftable.formula

Formula Notation for Flat Contingency Tables
friedman.test

Friedman Rank Sum Test
is.empty.model

Test if a Model's Formula is Empty
lag

Lag a Time Series
IQR

The Interquartile Range
lag.plot

Time Series Lag Plots
loadings

Print Loadings in Factor Analysis
loess.control

Set Parameters for Loess
plot.profile.nls

Plot a profile.nls Object
Poisson

The Poisson Distribution
plot.spec

Plotting Spectral Densities
predict.HoltWinters

Prediction Function for Fitted Holt-Winters Models
predict.glm

Predict Method for GLM Fits
poisson.test

Exact Poisson tests
prop.test

Test of Equal or Given Proportions
proj

Projections of Models
se.contrast

Standard Errors for Contrasts in Model Terms
model.matrix

Construct Design Matrices
selfStart

Construct Self-starting Nonlinear Models
plot.isoreg

Plot Method for isoreg Objects
plot.HoltWinters

Plot function for HoltWinters objects
NLSstLfAsymptote

Horizontal Asymptote on the Left Side
model.tables

Compute Tables of Results from an Aov Model Fit
NLSstClosestX

Inverse Interpolation
power.prop.test

Power Calculations for Two-Sample Test for Proportions
power

Create a Power Link Object
prcomp

Principal Components Analysis
predict.Arima

Forecast from ARIMA fits
naresid

NLSstRtAsymptote

Horizontal Asymptote on the Right Side
naprint

pairwise.wilcox.test

Pairwise Wilcoxon Rank Sum Tests
pairwise.table

Tabulate p values for pairwise comparisons
nobs

plot.ppr

plot.lm

Plot Diagnostics for an lm Object
quade.test

Quade Test
quantile

Sample Quantiles
simulate

Simulate Responses
SSgompertz

Self-Starting Nls Gompertz Growth Model
SSfpl

Self-Starting Nls Four-Parameter Logistic Model
smooth

Tukey's (Running Median) Smoothing
summary.manova

Summary Method for Multivariate Analysis of Variance
stepfun

Step Functions - Creation and Class
step

summary.nls

Summarizing Non-Linear Least-Squares Model Fits
line

Robust Line Fitting
listof

A Class for Lists of (Parts of) Model Fits
Lognormal

The Log Normal Distribution
lowess

Scatter Plot Smoothing
nextn

Highly Composite Numbers
mcnemar.test

McNemar's Chi-squared Test for Count Data
mauchly.test

Mauchly's Test of Sphericity
NegBinomial

The Negative Binomial Distribution
p.adjust

Adjust P-values for Multiple Comparisons
order.dendrogram

Ordering or Labels of the Leaves in a Dendrogram
extractAIC

Extract AIC from a Fitted Model
factor.scope

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

Draw a Heat Map
ftable

Flat Contingency Tables
GammaDist

The Gamma Distribution
HoltWinters

Holt-Winters Filtering
Logistic

The Logistic Distribution
loess

Local Polynomial Regression Fitting
ls.diag

Compute Diagnostics for
ls.print

Print
TDist

The Student t Distribution
termplot

Plot Regression Terms
ts

Time-Series Objects
update.formula

Model Updating
ts.plot

Plot Multiple Time Series
update

Update and Re-fit a Model Call
C

Sets Contrasts for a Factor
xtabs

Cross Tabulation
print.power.htest

Print Methods for Hypothesis Tests and Power Calculation Objects
princomp

Principal Components Analysis
rect.hclust

Draw Rectangles Around Hierarchical Clusters
relevel

Reorder Levels of Factor
SSD

SSD Matrix and Estimated Variance Matrix in Multivariate Models
scatter.smooth

Scatter Plot with Smooth Curve Fitted by Loess
rWishart

Random Wishart Distributed Matrices
SSfol

Self-Starting Nls First-order Compartment Model
screeplot

Screeplots
SSmicmen

Self-Starting Nls Michaelis-Menten Model
SSlogis

Self-Starting Nls Logistic Model
sd

Standard Deviation
sigma

Extract Residual Standard Deviation 'Sigma'
SSasymp

Self-Starting Nls Asymptotic Regression Model
SignRank

Distribution of the Wilcoxon Signed Rank Statistic
SSweibull

Self-Starting Nls Weibull Growth Curve Model
SSasympOff

Self-Starting Nls Asymptotic Regression Model with an Offset
terms.object

Description of Terms Objects
start

Encode the Terminal Times of Time Series
time

Sampling Times of Time Series
supsmu

Friedman's SuperSmoother
summary.princomp

Summary method for Principal Components Analysis
weights

Extract Model Weights
toeplitz

Form Symmetric Toeplitz Matrix
Wilcoxon

Distribution of the Wilcoxon Rank Sum Statistic
ts-methods

Methods for Time Series Objects
wilcox.test

Wilcoxon Rank Sum and Signed Rank Tests
window

Time Windows
model.extract

Extract Components from a Model Frame
model.frame

Extracting the Model Frame from a Formula or Fit
Multinom

The Multinomial Distribution
na.action

NA Action
numericDeriv

Evaluate Derivatives Numerically
Normal

The Normal Distribution
oneway.test

Test for Equal Means in a One-Way Layout
offset

Include an Offset in a Model Formula
plot.stepfun

Plot Step Functions
Tukey

The Studentized Range Distribution
plot.ts

Plotting Time-Series Objects
TukeyHSD

Compute Tukey Honest Significant Differences
fligner.test

Fligner-Killeen Test of Homogeneity of Variances
fivenum

Tukey Five-Number Summaries
glm.control

Auxiliary for Controlling GLM Fitting
glm

Fitting Generalized Linear Models
ks.test

Kolmogorov-Smirnov Tests
glm.summaries

Accessing Generalized Linear Model Fits
hclust

Hierarchical Clustering
ksmooth

Kernel Regression Smoother
lm

Fitting Linear Models
lm.influence

Regression Diagnostics
lsfit

Find the Least Squares Fit
mahalanobis

Mahalanobis Distance
median

Median Value
medpolish

Median Polish (Robust Twoway Decomposition) of a Matrix
na.contiguous

Find Longest Contiguous Stretch of non-NAs
nlminb

Optimization using PORT routines
nlm

Non-Linear Minimization
na.fail

Handle Missing Values in Objects
optimize

One Dimensional Optimization
optim

General-purpose Optimization
power.t.test

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

Phillips-Perron Test for Unit Roots
predict.loess

Predict Loess Curve or Surface
predict.nls

Predicting from Nonlinear Least Squares Fits
printCoefmat

Print Coefficient Matrices
print.ts

Printing and Formatting of Time-Series Objects
reorder.default

Reorder Levels of a Factor
reorder.dendrogram

Reorder a Dendrogram
residuals

Extract Model Residuals
plot.acf

Plot Autocovariance and Autocorrelation Functions
runmed

Running Medians -- Robust Scatter Plot Smoothing
plot.density

Plot Method for Kernel Density Estimation
poly

Compute Orthogonal Polynomials
predict.smooth.spline

Predict from Smoothing Spline Fit
power.anova.test

Power Calculations for Balanced One-Way Analysis of Variance Tests
replications

Number of Replications of Terms
qqnorm

Quantile-Quantile Plots
preplot

Pre-computations for a Plotting Object
prop.trend.test

Test for trend in proportions
setNames

Set the Names in an Object
reshape

Reshape Grouped Data
shapiro.test

Shapiro-Wilk Normality Test
smooth.spline

Fit a Smoothing Spline
splinefun

Interpolating Splines
spectrum

Spectral Density Estimation
smoothEnds

End Points Smoothing (for Running Medians)
symnum

Symbolic Number Coding
summary.lm

Summarizing Linear Model Fits
summary.glm

Summarizing Generalized Linear Model Fits
spec.pgram

Estimate Spectral Density of a Time Series by a Smoothed
t.test

Student's t-Test
spec.taper

Taper a Time Series by a Cosine Bell
SSasympOrig

Self-Starting Nls Asymptotic Regression Model through the Origin
stat.anova

GLM Anova Statistics
stats-defunct

Defunct Functions in Package
SSbiexp

Self-Starting Nls Biexponential model
stlmethods

Methods for STL Objects
stl

Seasonal Decomposition of Time Series by Loess
terms

Model Terms
terms.formula

Construct a terms Object from a Formula
ppr

Projection Pursuit Regression
ppoints

Ordinates for Probability Plotting
predict

Model Predictions
predict.lm

Predict method for Linear Model Fits
profile

Generic Function for Profiling Models
r2dtable

Random 2-way Tables with Given Marginals
profile.nls

Method for Profiling nls Objects
sortedXyData

Create a
read.ftable

Manipulate Flat Contingency Tables
spec.ar

Estimate Spectral Density of a Time Series from AR Fit
Uniform

The Uniform Distribution
uniroot

One Dimensional Root (Zero) Finding
Weibull

The Weibull Distribution
vcov

stats-deprecated

Deprecated Functions in Package
stats-package

summary.aov

Summarize an Analysis of Variance Model
StructTS

Fit Structural Time Series
ts.union

Bind Two or More Time Series
weighted.mean

Weighted Arithmetic Mean
tsdiag

Diagnostic Plots for Time-Series Fits
weighted.residuals

Compute Weighted Residuals
tsSmooth

Use Fixed-Interval Smoothing on Time Series
tsp

Tsp Attribute of Time-Series-like Objects
varimax

Rotation Methods for Factor Analysis
var.test

F Test to Compare Two Variances
Exponential

The Exponential Distribution
Hypergeometric

The Hypergeometric Distribution
factanal

Factor Analysis
mad

Median Absolute Deviation
nls

Nonlinear Least Squares