Learn R Programming

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

stats (version 3.3.1)

The R Stats Package

Description

R statistical functions.

Copy Link

Version

Version

3.3.1

License

Part of R 3.3.1

Last Published

December 12th, 2019

Functions in stats (3.3.1)

anova.glm

Analysis of Deviance for Generalized Linear Model Fits
alias

Find Aliases (Dependencies) in a Model
add1

Add or Drop All Possible Single Terms to a Model
AIC

Akaike's An Information Criterion
anova.lm

ANOVA for Linear Model Fits
acf2AR

Compute an AR Process Exactly Fitting an ACF
aggregate

Compute Summary Statistics of Data Subsets
acf

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

Puts Arbitrary Margins on Multidimensional Tables or Arrays
anova

Anova Tables
ar.ols

Fit Autoregressive Models to Time Series by OLS
ansari.test

Ansari-Bradley Test
approxfun

Interpolation Functions
aov

Fit an Analysis of Variance Model
arima

ARIMA Modelling of Time Series
anova.mlm

Comparisons between Multivariate Linear Models
ar

Fit Autoregressive Models to Time Series
ARMAacf

Compute Theoretical ACF for an ARMA Process
arima.sim

Simulate from an ARIMA Model
arima0

ARIMA Modelling of Time Series -- Preliminary Version
as.hclust

Convert Objects to Class hclust
Beta

The Beta Distribution
binom.test

Exact Binomial Test
ave

Group Averages Over Level Combinations of Factors
asOneSidedFormula

Convert to One-Sided Formula
Binomial

The Binomial Distribution
bandwidth

Bandwidth Selectors for Kernel Density Estimation
bartlett.test

Bartlett Test of Homogeneity of Variances
ARMAtoMA

Convert ARMA Process to Infinite MA Process
biplot

Biplot of Multivariate Data
Cauchy

The Cauchy Distribution
.checkMFClasses

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

Pearson's Chi-squared Test for Count Data
cancor

Canonical Correlations
biplot.princomp

Biplot for Principal Components
Chisquare

The (non-central) Chi-Squared Distribution
birthday

Probability of coincidences
case+variable.names

Case and Variable Names of Fitted Models
cmdscale

Classical (Metric) Multidimensional Scaling
Box.test

Box-Pierce and Ljung-Box Tests
confint

Confidence Intervals for Model Parameters
coef

Extract Model Coefficients
convolve

Convolution of Sequences via FFT
contrasts

Get and Set Contrast Matrices
cor

Correlation, Variance and Covariance (Matrices)
constrOptim

Linearly Constrained Optimization
cophenetic

Cophenetic Distances for a Hierarchical Clustering
contrast

(Possibly Sparse) Contrast Matrices
cor.test

Test for Association/Correlation Between Paired Samples
complete.cases

Find Complete Cases
delete.response

Modify Terms Objects
cutree

Cut a Tree into Groups of Data
decompose

Classical Seasonal Decomposition by Moving Averages
df.residual

Residual Degrees-of-Freedom
deviance

Model Deviance
dendrapply

Apply a Function to All Nodes of a Dendrogram
cpgram

Plot Cumulative Periodogram
cov.wt

Weighted Covariance Matrices
density

Kernel Density Estimation
deriv

Symbolic and Algorithmic Derivatives of Simple Expressions
effects

Effects from Fitted Model
Distributions

Distributions in the stats package
embed

Embedding a Time Series
diffinv

Discrete Integration: Inverse of Differencing
dummy.coef

Extract Coefficients in Original Coding
ecdf

Empirical Cumulative Distribution Function
dist

Distance Matrix Computation
eff.aovlist

Compute Efficiencies of Multistratum Analysis of Variance
expand.model.frame

Add new variables to a model frame
extractAIC

Extract AIC from a Fitted Model
FDist

The F Distribution
fft

Fast Discrete Fourier Transform (FFT)
IQR

The Interquartile Range
interaction.plot

Two-way Interaction Plot
fitted

Extract Model Fitted Values
fivenum

Tukey Five-Number Summaries
glm.summaries

Accessing Generalized Linear Model Fits
glm

Fitting Generalized Linear Models
influence.measures

Regression Deletion Diagnostics
integrate

Integration of One-Dimensional Functions
lm.fit

Fitter Functions for Linear Models
loadings

Print Loadings in Factor Analysis
ls.print

Print lsfit Regression Results
ls.diag

Compute Diagnostics for lsfit Regression Results
glm.control

Auxiliary for Controlling GLM Fitting
getInitial

Get Initial Parameter Estimates
KalmanLike

Kalman Filtering
heatmap

Draw a Heat Map
hclust

Hierarchical Clustering
kernapply

Apply Smoothing Kernel
Lognormal

The Log Normal Distribution
line

Robust Line Fitting
lag.plot

Time Series Lag Plots
model.matrix

Construct Design Matrices
model.extract

Extract Components from a Model Frame
lowess

Scatter Plot Smoothing
formula.nls

Extract Model Formula from nls Object
formula

Model Formulae
fligner.test

Fligner-Killeen Test of Homogeneity of Variances
friedman.test

Friedman Rank Sum Test
kruskal.test

Kruskal-Wallis Rank Sum Test
ks.test

Kolmogorov-Smirnov Tests
logLik

Extract Log-Likelihood
manova

Multivariate Analysis of Variance
loglin

Fitting Log-Linear Models
nls.control

Control the Iterations in nls
offset

Include an Offset in a Model Formula
NLSstAsymptotic

Fit the Asymptotic Regression Model
oneway.test

Test for Equal Means in a One-Way Layout
power.anova.test

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

Create a Power Link Object
PP.test

Phillips-Perron Test for Unit Roots
ppoints

Ordinates for Probability Plotting
read.ftable

Manipulate Flat Contingency Tables
rect.hclust

Draw Rectangles Around Hierarchical Clusters
reshape

Reshape Grouped Data
residuals

Extract Model Residuals
sd

Standard Deviation
se.contrast

Standard Errors for Contrasts in Model Terms
sortedXyData

Create a sortedXyData Object
spec.ar

Estimate Spectral Density of a Time Series from AR Fit
factor.scope

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

The Gamma Distribution
family

Family Objects for Models
Geometric

The Geometric Distribution
identify.hclust

Identify Clusters in a Dendrogram
HoltWinters

Holt-Winters Filtering
ksmooth

Kernel Regression Smoother
lag

Lag a Time Series
listof

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

Linear Filtering on a Time Series
fisher.test

Fisher's Exact Test for Count Data
ftable.formula

Formula Notation for Flat Contingency Tables
ftable

Flat Contingency Tables
is.empty.model

Test if a Model's Formula is Empty
isoreg

Isotonic / Monotone Regression
kernel

Smoothing Kernel Objects
loess.control

Set Parameters for Loess
kmeans

K-Means Clustering
Logistic

The Logistic Distribution
lm.summaries

Accessing Linear Model Fits
lm

Fitting Linear Models
lsfit

Find the Least Squares Fit
mauchly.test

Mauchly's Test of Sphericity
mahalanobis

Mahalanobis Distance
mcnemar.test

McNemar's Chi-squared Test for Count Data
naresid

Adjust for Missing Values
na.fail

Handle Missing Values in Objects
NLSstLfAsymptote

Horizontal Asymptote on the Left Side
NLSstClosestX

Inverse Interpolation
plot.acf

Plot Autocovariance and Autocorrelation Functions
plot.density

Plot Method for Kernel Density Estimation
printCoefmat

Print Coefficient Matrices
power.prop.test

Power Calculations for Two-Sample Test for Proportions
power.t.test

Power calculations for one and two sample t tests
profile

Generic Function for Profiling Models
quantile

Sample Quantiles
rWishart

Random Wishart Distributed Matrices
r2dtable

Random 2-way Tables with Given Marginals
runmed

Running Medians -- Robust Scatter Plot Smoothing
naprint

Adjust for Missing Values
NegBinomial

The Negative Binomial Distribution
Normal

The Normal Distribution
numericDeriv

Evaluate Derivatives Numerically
plot.HoltWinters

Plot function for HoltWinters objects
plot.isoreg

Plot Method for isoreg Objects
sigma

Extract Residual Standard Deviation 'Sigma'
shapiro.test

Shapiro-Wilk Normality Test
spectrum

Spectral Density Estimation
splinefun

Interpolating Splines
SSgompertz

Self-Starting Nls Gompertz Growth Model
SSfpl

Self-Starting Nls Four-Parameter Logistic Model
stats-deprecated

Deprecated Functions in Package stats
plot.ppr

Plot Ridge Functions for Projection Pursuit Regression Fit
plot.lm

Plot Diagnostics for an lm Object
predict.Arima

Forecast from ARIMA fits
predict.glm

Predict Method for GLM Fits
qqnorm

Quantile-Quantile Plots
print.ts

Printing and Formatting of Time-Series Objects
print.power.htest

Print Methods for Hypothesis Tests and Power Calculation Objects
make.link

Create a Link for GLM Families
makepredictcall

Utility Function for Safe Prediction
model.tables

Compute Tables of Results from an Aov Model Fit
monthplot

Plot a Seasonal or other Subseries from a Time Series
na.action

NA Action
na.contiguous

Find Longest Contiguous Stretch of non-NAs
median

Median Value
mantelhaen.test

Cochran-Mantel-Haenszel Chi-Squared Test for Count Data
pairwise.prop.test

Pairwise comparisons for proportions
medpolish

Median Polish of a Matrix
Poisson

The Poisson Distribution
pairwise.t.test

Pairwise t tests
poisson.test

Exact Poisson tests
predict.nls

Predicting from Nonlinear Least Squares Fits
predict.smooth.spline

Predict from Smoothing Spline Fit
profile.nls

Method for Profiling nls Objects
stlmethods

Methods for STL Objects
toeplitz

Form Symmetric Toeplitz Matrix
weighted.mean

Weighted Arithmetic Mean
var.test

F Test to Compare Two Variances
SSfol

Self-Starting Nls First-order Compartment Model
SSD

SSD Matrix and Estimated Variance Matrix in Multivariate Models
stl

Seasonal Decomposition of Time Series by Loess
summary.princomp

Summary method for Principal Components Analysis
supsmu

Friedman's SuperSmoother
ts-methods

Methods for Time Series Objects
varimax

Rotation Methods for Factor Analysis
weighted.residuals

Compute Weighted Residuals
quade.test

Quade Test
SignRank

Distribution of the Wilcoxon Signed Rank Statistic
smooth

Tukey's (Running Median) Smoothing
StructTS

Fit Structural Time Series
symnum

Symbolic Number Coding
summary.aov

Summarize an Analysis of Variance Model
t.test

Student's t-Test
tsp

Tsp Attribute of Time-Series-like Objects
tsSmooth

Use Fixed-Interval Smoothing on Time Series
Tukey

The Studentized Range Distribution
lm.influence

Regression Diagnostics
mood.test

Mood Two-Sample Test of Scale
Multinom

The Multinomial Distribution
nextn

Highly Composite Numbers
nlm

Non-Linear Minimization
optimize

One Dimensional Optimization
optim

General-purpose Optimization
order.dendrogram

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

Adjust P-values for Multiple Comparisons
plot.stepfun

Plot Step Functions
nobs

Extract the Number of Observations from a Fit.
NLSstRtAsymptote

Horizontal Asymptote on the Right Side
pairwise.table

Tabulate p values for pairwise comparisons
pairwise.wilcox.test

Pairwise Wilcoxon Rank Sum Tests
plot.spec

Plotting Spectral Densities
plot.profile.nls

Plot a profile.nls Object
predict.HoltWinters

Prediction Function for Fitted Holt-Winters Models
preplot

Pre-computations for a Plotting Object
predict

Model Predictions
relevel

Reorder Levels of Factor
proj

Projections of Models
reorder.dendrogram

Reorder a Dendrogram
SSasymp

Self-Starting Nls Asymptotic Regression Model
SSasympOff

Self-Starting Nls Asymptotic Regression Model with an Offset
start

Encode the Terminal Times of Time Series
SSweibull

Self-Starting Nls Weibull Growth Curve Model
summary.glm

Summarizing Generalized Linear Model Fits
summary.lm

Summarizing Linear Model Fits
plot.ts

Plotting Time-Series Objects
TukeyHSD

Compute Tukey Honest Significant Differences
terms.formula

Construct a terms Object from a Formula
ppr

Projection Pursuit Regression
prcomp

Principal Components Analysis
predict.loess

Predict Loess Curve or Surface
predict.lm

Predict method for Linear Model Fits
prop.trend.test

Test for trend in proportions
prop.test

Test of Equal or Given Proportions
scatter.smooth

Scatter Plot with Smooth Curve Fitted by Loess
screeplot

Screeplots
selfStart

Construct Self-starting Nonlinear Models
terms.object

Description of Terms Objects
terms

Model Terms
time

Sampling Times of Time Series
weights

Extract Model Weights
spec.pgram

Estimate Spectral Density of a Time Series by a Smoothed Periodogram
spec.taper

Taper a Time Series by a Cosine Bell
setNames

Set the Names in an Object
SSmicmen

Self-Starting Nls Michaelis-Menten Model
summary.manova

Summary Method for Multivariate Analysis of Variance
ts

Time-Series Objects
summary.nls

Summarizing Non-Linear Least-Squares Model Fits
ts.plot

Plot Multiple Time Series
update.formula

Model Updating
Wilcoxon

Distribution of the Wilcoxon Rank Sum Statistic
update

Update and Re-fit a Model Call
stats-package

The R Stats Package
TDist

The Student t Distribution
termplot

Plot Regression Terms
ts.union

Bind Two or More Time Series
tsdiag

Diagnostic Plots for Time-Series Fits
vcov

Calculate Variance-Covariance Matrix for a Fitted Model Object
Weibull

The Weibull Distribution
reorder.default

Reorder Levels of a Factor
smooth.spline

Fit a Smoothing Spline
SSasympOrig

Self-Starting Nls Asymptotic Regression Model through the Origin
smoothEnds

End Points Smoothing (for Running Medians)
SSbiexp

Self-Starting Nls Biexponential model
stat.anova

GLM Anova Statistics
stats-defunct

Defunct Functions in Package stats
wilcox.test

Wilcoxon Rank Sum and Signed Rank Tests
Uniform

The Uniform Distribution
uniroot

One Dimensional Root (Zero) Finding
C

Sets Contrasts for a Factor
SSlogis

Self-Starting Nls Logistic Model
princomp

Principal Components Analysis
window

Time Windows
replications

Number of Replications of Terms
stepfun

Step Functions - Creation and Class
step

Choose a model by AIC in a Stepwise Algorithm