This page describes Stata programs developed by the UCLA ATS Statistical Consulting Group for data analysis. You can download any of these programs from within Stata using the search command. For example, to download the cmeans command you can type search cmeans (see How can I use the search command to search for programs and get additional help? for more information about using search).
Please note: The programs xi3 and postgr3 have been retired and are no longer available for download.
Program withdrawn
ANOVA Tools  
anovalator  Main effects, twoway interactions, pairwise comparisons, contrasts (Stata 11) 
anovacontrast  How can I do ANOVA contrasts in Stata? 
ctems  How can I determine the correct term in an anova using Stata? 
effectsize  Program withdrawn 
factorialsim  How can I do power and robustness analyses for factorial anova? (Stata 11) 
fhcomp  FisherHayter pairwise comparisons 
fpower  Anova Power Analysis 
fstar  F* robust oneway ANOVA 
nonadd  Tukey test for nonadditivity 
simanova  Simulation of ANOVA 
simpower  Power simulation for ANOVA 
sme  Computes tests of simple main effects 
smecriticalvalue  Computes critical values for tests of simple main effects and related tests. 
testalterr  Computes anova Fratio using arbitrary numeric error term 
tukeyhsd  Tukey’s HSD pairwise comparisons 
tkcomp  TukeyKramer pairwise comparisons 
tukeykramer  TukeyKramer pairwise comparisons on lsmeans/emmeans (Stata 11) 
wtest  W robust oneway ANOVA 
Correlation and Regression Tools 

aipe  Accuracy in parameter estimation 
canred  Canonical correlation redundancy analysis (needs Stata 9) 
collin  Collinearity diagnostics 
fapara  Factor analysis parallel analysis 
facom  Communalities after factor analysis 
hinflu6  Computes Hadi measure of regression influence 
lvr2dplot  Leverage vs. Residual Squared with Cook’s D 
ml_mediation  Mediation with multilevel data 
partcorr  Partial & semipartial correlation 
pathreg  Path analysis using ols regression 
powerreg  Power analysis for Linear regression models 
protab  Predicted proportions following logit transformation 
regeffectsize  Computes effect size for variable in regression model 
regvalidate  Postestimation command to perform validation thru resampling 
regfungible  Generates fungible regression weights for reduced values of Rsquared. 
sgmediation  SobelGoodman mediation tests 
rregfit  R2 and fit indices for robust regression (rreg) 
rsquare  Computes rsquare for all possible regressions 
test2  Alternative test after regress 
wls0  Weighted least squares regression á la Greene 
Logistic, Poisson, and Negative Binomial Regression Tools 

binary_mediation  Mediation with binary mediator and/or binary response variable 
ldev  Compute deviance after logistic 
ldfbeta  Compute dfBeta after logistic regression 
logsub  Logistic regression subsets 
nbvargr  Graphs observed, poisson, & negative binomial probabilities 
powerlog  Power analysis for logistic regression 
pprob  Program to compute poisson probabilities 
scatlog  Scatterplot with logistic regression line 
vibl  Visualizing Main Effects and Interactions for Binary Logit Models in Stata 
Graphics Tools 

histbo  Histogram with boxplot 
meansdplot  Plot means and standard deviations for groups 
profileplot  Profile plots across variables for multiple groups 
grss  Graph slide show 
graph2tex  Convert Stata Graph to .eps with LaTeX Code 
Other Data Analysis Tools 

chi2power  How can I compute power for contingency tables in Stata? 
csgof  Chi square goodness of fit test 
do2htm  Make results of .do files to .htm files 
emeans  Extended means command, including quadratic means 
extrans  Examine effects of transformations 
gstudy  Generalizability study program 
hilo  Displays highest and lowest values for variable 
hplot2  Horizontal plot using ascii characters 
largest  Program to display largest "n" observations 
mctest  Multiple choice test item analysis. 
ml2mixed  Convert a multilevel model to a mixed model. 
pred_eq  Creates and tests imputation models (equations) for ice. 
refgroup  Set reference group for coded variables 
rtab  Reverse tabulate, yielding percentiles 
robmean  Robust estimates of central tendency 
smallest  Show smallest values 
showmarkers  How can I view different marker symbol options? 
spagplot  Spaghetti plots 
stata2mlwin  Converts Stata data files to MLwiN data files 
stata2mplus  Converts Stata data files to Mplus data files 
stfit  Fit statistics for survival models 
sumsum  Compute sums of variables, and sums across variables 
tablabel  Tabulate values for each value label including zero counts 
tablist  Makes tables and crosstabs using list style output 
tabmiss  Makes tables of number of missing and nonmissing values 
vartable  Show table of means and variances 
wincorr  Winsorized “robust” correlation 
mdesc  Displays the number and proportion of missing values for each variable. Available from SSC. 
milrtest  Performs a likelihood ratio test on nested models for multiply imputed datasets after mim. 