Base Reference Manual
This manual includes features that are part of StataNow™.
Publisher: | Stata Press |
Copyright: | 2023 |
ISBN-13: | 978-1-59718-395-6 |
Pages: | 3,292 |
Suggested citation
StataCorp. 2023. Stata 18 Base Reference Manual. College Station, TX: Stata Press.
Supplemental materials
An Introduction to Modern Econometrics Using Stata
Christopher F. Baum
Microeconometrics Using Stata, Second Edition
A. Colin Cameron and Pravin K. Trivedi
Environmental Econometrics Using Stata
Christopher F. Baum and Stan Hurn
Generalized Linear Models and Extensions, Fourth Edition
James W. Hardin and Joseph M. Hilbe
Regression Models for Categorical Dependent Variables Using Stata, Third Edition
J. Scott Long and Jeremy Freese
Interpreting and Visualizing Regression Models Using Stata, Second Edition
Michael N. Mitchell
Using Stata effectively: Data management, analysis, and graphics fundamentals training course
Regression modeling using Stata training course
Tips and Tricks webinar
Table of contents
Intro | Introduction to base reference manual |
about | Display information about your Stata |
ado update | Update community-contributed packages |
ameans | Arithmetic, geometric, and harmonic means |
anova | Analysis of variance and covariance |
anova postestimation | Postestimation tools for anova |
areg | Linear regression with many indicator variables StataNow |
areg postestimation | Postestimation tools for areg |
betareg | Beta regression |
betareg postestimation | Postestimation tools for betareg |
binreg | Generalized linear models: Extensions to the binomial family |
binreg postestimation | Postestimation tools for binreg |
biprobit | Bivariate probit regression |
biprobit postestimation | Postestimation tools for biprobit |
bitest | Binomial probability test |
bootstrap | Bootstrap sampling and estimation |
bootstrap postestimation | Postestimation tools for bootstrap |
boxcox | Box–Cox regression models |
boxcox postestimation | Postestimation tools for boxcox |
brier | Brier score decomposition |
bsample | Sampling with replacement |
bstat | Report bootstrap results |
centile | Report centile and confidence interval |
churdle | Cragg hurdle regression |
churdle postestimation | Postestimation tools for churdle |
ci | Confidence intervals for means, proportions, and variances |
clogit | Conditional (fixed-effects) logistic regression |
clogit postestimation | Postestimation tools for clogit |
cloglog | Complementary log–log regression |
cloglog postestimation | Postestimation tools for cloglog |
cls | Clear Results window |
cnsreg | Constrained linear regression |
cnsreg postestimation | Postestimation tools for cnsreg |
constraint | Define and list constraints |
contrast | Contrasts and linear hypothesis tests after estimation |
contrast postestimation | Postestimation tools for contrast |
copyright | Display copyright information |
Copyright Apache | Apache copyright notification |
Copyright autolink | autolink copyright notification |
Copyright Boost | Boost copyright notification |
Copyright flexmark | flexmark copyright notification |
Copyright Hamcrest | Hamcrest copyright notification |
Copyright H2O | H2O copyright notification |
Copyright ICD-10 | ICD-10 copyright notification |
Copyright ICU | ICU copyright notification |
Copyright JAXB | JAXB copyright notification |
Copyright JGoodies Common | JGoodies Common copyright notification |
Copyright JGoodies Forms | JGoodies Forms copyright notification |
Copyright JSON | JSON for Modern C++ copyright notification |
Copyright jsoup | jsoup copyright notification |
Copyright LAPACK | LAPACK copyright notification |
Copyright libHaru | HARU copyright notification |
Copyright libpng | libpng copyright notification |
Copyright Mersenne Twister | Mersenne Twister copyright notification |
Copyright MiG Layout | MiG Layout copyright notification |
Copyright Parsington | Parsington copyright notification |
Copyright PolyHook | PolyHook copyright notification |
Copyright ReadStat | ReadStat copyright notification |
Copyright Scintilla | Scintilla copyright notification |
Copyright slf4j | slf4j copyright notification |
Copyright ttf2pt1 | ttf2pt1 copyright notification |
Copyright Win32 Dark Mode | Copyright Win32 Dark Mode copyright notification |
Copyright zlib | zlib copyright notification |
correlate | Correlations of variables |
cpoisson | Censored Poisson regression |
cpoisson postestimation | Postestimation tools for cpoisson |
cumul | Cumulative distribution |
cusum | Cusum plots and tests for binary variables |
db | Launch dialog |
demandsys | Estimation of flexible demand systems |
demandsys postestimation | Postestimation tools for demandsys | Diagnostic plots | Distributional diagnostic plots |
display | Substitute for a hand calculator |
do | Execute commands from a file |
doedit | Edit do-files and other text files |
dotplot | Comparative distribution dotplots |
dstdize | Direct and indirect standardization |
dtable | Create a table of descriptive statistics |
dydx | Calculate numeric derivatives and integrals |
eform_option | Displaying exponentiated coefficients |
eivreg | Errors-in-variables regression |
eivreg postestimation | Postestimation tools for eivreg |
Epitab | Tables for epidemiologists |
Error messages | Error messages and return codes |
esize | Effect size based on mean comparison |
estat | Postestimation statistics |
estat classification | Classification statistics and table |
estat gof | Pearson or Hosmer–Lemeshow goodness-of-fit test |
estat ic | Display information criteria |
estat summarize | Summarize estimation sample |
estat vce | Display covariance matrix estimates |
estimates | Save and manipulate estimation results |
estimates describe | Describe estimation results |
estimates for | Repeat postestimation command across models |
estimates notes | Add notes to estimation results |
estimates replay | Redisplay estimation results |
estimates save | Save and use estimation results |
estimates selected | Show selected coefficients |
estimates stats | Model-selection statistics |
estimates store | Store and restore estimation results |
estimates table | Compare estimation results |
estimates title | Set title for estimation results |
Estimation options | Estimation options |
etable | Create a table of estimation results |
exit | Exit Stata |
exlogistic | Exact logistic regression |
exlogistic postestimation | Postestimation tools for exlogistic |
expoisson | Exact Poisson regression |
expoisson postestimation | Postestimation tools for expoisson |
fp | Fractional polynomial regression |
fp postestimation | Postestimation tools for fp |
fracreg | Fractional response regression |
fracreg postestimation | Postestimation tools for fracreg |
frontier | Stochastic frontier models |
frontier postestimation | Postestimation tools for frontier |
fvrevar | Factor-variables operator programming command |
fvset | Declare factor-variable settings |
gllamm | Generalized linear and latent mixed models |
glm | Generalized linear models |
glm postestimation | Postestimation tools for glm |
gmm | Generalized method of moments estimation |
gmm postestimation | Postestimation tools for gmm |
grmeanby | Graph means and medians by categorical variables |
hausman | Hausman specification test |
heckman | Heckman selection model |
heckman postestimation | Postestimation tools for heckman |
heckoprobit | Ordered probit model with sample selection |
heckoprobit postestimation | Postestimation tools for heckoprobit |
heckpoisson | Poisson regression with sample selection |
heckpoisson postestimation | Postestimation tools for heckpoisson |
heckprobit | Probit model with sample selection |
heckprobit postestimation | Postestimation tools for heckprobit |
help | Display help in Stata |
hetoprobit | Heteroskedastic ordered probit regression |
hetoprobit postestimation | Postestimation tools for hetoprobit |
hetprobit | Heteroskedastic probit model |
hetprobit postestimation | Postestimation tools for hetprobit |
hetregress | Heteroskedastic linear regression |
hetregress postestimation | Postestimation tools for hetregress |
histogram | Histograms for continuous and categorical variables |
IC note | Calculating and interpreting information criteria |
icc | Intraclass correlation coefficients |
Inequality | Inequality, poverty, and other distributional summaries |
intreg | Interval regression |
intreg postestimation | Postestimation tools for intreg |
ivfpoisson | Fractional probit model with continuous endogenous covariates |
ivfpoisson postestimation | Postestimation tools for ivfpoisson |
ivpoisson | Poisson model with continuous endogenous covariates |
ivpoisson postestimation | Postestimation tools for ivpoisson |
ivprobit | Probit model with continuous endogenous covariates |
ivprobit postestimation | Postestimation tools for ivprobit |
ivqregress | Instrumental-variables quantile regression |
ivqregress postestimation | Postestimation tools for ivqregress |
ivregress | Single-equation instrumental-variables regression |
ivregress postestimation | Postestimation tools for ivregress StataNow |
ivtobit | Tobit model with continuous endogenous covariates |
ivtobit postestimation | Postestimation tools for ivtobit |
jackknife | Jackknife estimation |
jackknife postestimation | Postestimation tools for jackknife |
kappa | Interrater agreement |
kdensity | Univariate kernel density estimation |
ksmirnov | Kolmogorov–Smirnov equality-of-distributions test |
kwallis | Kruskal–Wallis equality-of-populations rank test |
ladder | Ladder of powers |
level | Set default confidence level |
Limits | Quick reference for limits |
lincom | Linear combinations of parameters |
linktest | Specification link test for single-equation models |
lnskew0 | Find zero-skewness log or Box–Cox transform |
log | Echo copy of session to file |
logistic | Logistic regression, reporting odds ratios |
logistic postestimation | Postestimation tools for logistic |
logit | Logistic regression, reporting coefficients |
logit postestimation | Postestimation tools for logit |
loneway | Large one-way ANOVA, random effects, and reliability |
lowess | Lowess smoothing |
lpoly | Kernel-weighted local polynomial smoothing |
lroc | Compute area under ROC curve and graph the curve |
lrtest | Likelihood-ratio test after estimation |
lsens | Graph sensitivity and specificity versus probability cutoff |
lv | Letter-value displays |
makespline | Spline generation |
margins | Marginal means, predictive margins, and marginal effects |
margins postestimation | Postestimation tools for margins |
margins, contrast | Contrasts of margins |
margins, pwcompare | Pairwise comparisons of margins |
marginsplot | Graph results from margins (profile plots, etc.) |
Maximize | Details of iterative maximization |
mean | Estimate means |
mean postestimation | Postestimation tools for mean |
mfp | Multivariable fractional polynomial models |
mfp postestimation | Postestimation tools for mfp |
misstable | Tabulate missing values |
ml | Maximum likelihood estimation |
mlexp | Maximum likelihood estimation of user-specified expressions |
mlexp postestimation | Postestimation tools for mlexp |
mlogit | Multinomial (polytomous) logistic regression |
mlogit postestimation | Postestimation tools for mlogit |
more | The —more— message |
mprobit | Multinomial probit regression |
mprobit postestimation | Postestimation tools for mprobit |
nbreg | Negative binomial regression |
nbreg postestimation | Postestimation tools for nbreg and gnbreg |
nestreg | Nested model statistics |
net | Install and manage community-contributed additions from the Internet |
net search | Search the Internet for installable packages |
netio | Control Internet connections |
nl | Nonlinear least-squares estimation |
nl postestimation | Postestimation tools for nl |
nlcom | Nonlinear combinations of parameters |
nlsur | Estimation of nonlinear systems of equations |
nlsur postestimation | Postestimation tools for nlsur |
npregress intro | Introduction to nonparametric regression |
npregress kernel | Nonparametric kernel regression |
npregress kernel postestimation | Postestimation tools for npregress kernel |
npregress series | Nonparametric series regression |
npregress series postestimation | Postestimation tools for npregress series |
nptrend | Test for trend across ordered groups |
ologit | Ordered logistic regression |
ologit postestimation | Postestimation tools for ologit |
oneway | One-way analysis of variance |
oprobit | Ordered probit regression |
oprobit postestimation | Postestimation tools for oprobit |
orthog | Orthogonalize variables and compute orthogonal polynomials |
pcorr | Partial and semipartial correlation coefficients |
permute | Permutation tests |
pk | Pharmacokinetic (biopharmaceutical) data |
pkcollapse | Generate pharmacokinetic measurement dataset |
pkcross | Analyze crossover experiments |
pkequiv | Perform bioequivalence tests |
pkexamine | Calculate pharmacokinetic measures |
pkshape | Reshape (pharmacokinetic) Latin-square data |
pksumm | Summarize pharmacokinetic data |
poisson | Poisson regression |
poisson postestimation | Postestimation tools for poisson |
postest | Postestimation Selector |
predict | Obtain predictions, residuals, etc., after estimation |
predictnl | Obtain nonlinear predictions, standard errors, etc., after estimation |
probit | Probit regression |
probit postestimation | Postestimation tools for probit |
proportion | Estimate proportions |
proportion postestimation | Postestimation tools for proportion |
prtest | Tests of proportions |
pwcompare | Pairwise comparisons |
pwcompare postestimation | Postestimation tools for pwcompare |
pwmean | Pairwise comparisons of means |
pwmean postestimation | Postestimation tools for pwmean |
QC | Quality control charts |
qreg | Quantile regression |
qreg postestimation | Postestimation tools for qreg, iqreg, sqreg, and bsqreg |
query | Display system parameters |
ranksum | Equality tests on unmatched data |
ratio | Estimate ratios |
ratio postestimation | Postestimation tools for ratio |
reg3 | Three-stage estimation for systems of simultaneous equations |
reg3 postestimation | Postestimation tools for reg3 |
regress | Linear regression |
regress postestimation | Postestimation tools for regress |
regress postestimation diagnostic plots | Postestimation plots for regress |
regress postestimation time series | Postestimation tools for regress with time series |
reri | Relative excess risk due to interaction |
#review | Review previous commands |
roc | Receiver operating characteristic (ROC) analysis |
roccomp | Tests of equality of ROC areas |
rocfit | Parametric ROC models |
rocfit postestimation | Postestimation tools for rocfit |
rocreg | Receiver operating characteristic (ROC) regression |
rocreg postestimation | Postestimation tools for rocreg |
rocregplot | Plot marginal and covariate-specific ROC curves after rocreg |
roctab | Nonparametric ROC analysis |
rreg | Robust regression |
rreg postestimation | Postestimation tools for rreg |
runtest | Test for random order |
scobit | Skewed logistic regression |
scobit postestimation | Postestimation tools for scobit |
sdtest | Variance-comparison tests |
search | Search Stata documentation and other resources |
serrbar | Graph standard error bar chart |
set | Overview of system parameters |
set cformat | Format settings for coefficient tables |
set_defaults | Reset system parameters to original Stata defaults |
set emptycells | Set what to do with empty cells in interactions |
set iter | Control iteration settings |
set rng | Set which random-number generator (RNG) to use |
set rngstream | Specify the stream for the stream random-number generator |
set seed | Specify random-number seed and state |
set showbaselevels | Display settings for coefficient tables |
signrank | Equality tests on matched data |
simulate | Monte Carlo simulations |
sj | Stata Journal installation instructions |
sktest | Skewness and kurtosis test for normality |
slogit | Stereotype logistic regression |
slogit postestimation | Postestimation tools for slogit |
smooth | Robust nonlinear smoother |
spearman | Spearman's and Kendall's correlations |
spikeplot | Spike plots and rootograms |
ssc | Install and uninstall packages from SSC |
stem | Stem-and-leaf displays |
stepwise | Stepwise estimation |
Stored results | Stored results |
suest | Seemingly unrelated estimation |
summarize | Summary statistics |
sunflower | Density-distribution sunflower plots |
sureg | Zellner's seemingly unrelated regression |
sureg postestimation | Postestimation tools for sureg |
swilk | Shapiro–Wilk and Shapiro–Francia tests for normality |
symmetry | Symmetry and marginal homogeneity tests |
table intro | Introduction to tables of frequencies, summaries, and command results |
table oneway | One-way tabulation |
table twoway | Two-way tabulation |
table multiway | Multiway tables |
table summary | Table of summary statistics |
table hypothesis tests | Table of hypothesis tests |
table regression | Table of regression results |
table | Table of frequencies, summaries, and command results |
tabstat | Compact table of summary statistics |
tabulate oneway | One-way table of frequencies |
tabulate twoway | Two-way table of frequencies |
tabulate, summarize() | One- and two-way tables of summary statistics |
test | Test linear hypotheses after estimation |
testnl | Test nonlinear hypotheses after estimation |
tetrachoric | Tetrachoric correlations for binary variables |
tnbreg | Truncated negative binomial regression |
tnbreg postestimation | Postestimation tools for tnbreg |
tobit | Tobit regression |
tobit postestimation | Postestimation tools for tobit |
total | Estimate totals |
total postestimation | Postestimation tools for total |
tpoisson | Truncated Poisson regression |
tpoisson postestimation | Postestimation tools for tpoisson |
translate | Print and translate logs |
truncreg | Truncated regression |
truncreg postestimation | Postestimation tools for truncreg |
ttest | t tests (mean-comparison tests) |
update | Check for official updates |
vce_option | Variance estimators |
view | View files and logs |
vwls | Variance-weighted least squares |
vwls postestimation | Postestimation tools for vwls |
which | Display location of an ado-file |
wildbootstrap | Wild cluster bootstrap inference |
xi | Interaction expansion |
zinb | Zero-inflated negative binomial regression |
zinb postestimation | Postestimation tools for zinb |
ziologit | Zero-inflated ordered logit regression |
ziologit postestimation | Postestimation tools for ziologit |
zioprobit | Zero-inflated ordered probit regression |
zioprobit postestimation | Postestimation tools for zioprobit |
zip | Zero-inflated Poisson regression |
zip postestimation | Postestimation tools for zip |
ztest | z tests (mean-comparison tests, known variance) |
Combined author index | |
Combined subject index |