In this presentation, I cover how to use Stata for survey data analysis assuming a fixed population. We will begin by reviewing the sampling methods used to collect survey data, and how they affect the estimation of totals, ratios, and regression coefficients. We will then cover the three...

In this presentation, we introduce the command frcount for estimating the fractional response model with an endogenous count variable. The endogeneity of the right-hand-side count variable is controlled for under the presence of unobserved heterogeneity. We briefly discuss the model, estimation...

Abstract genetic association studies often explore the relationship between diseases and collections of contiguous genetic markers located on the same chromosome (known as haplotypes). Haplotypes are usually not observed directly but are inferred statistically using a variety of algorithms. One...

There are many different ways to work in Stata depending on your desires: You can work using the menus, dialog boxes, Command window, or via the Do-file Editor. Stata 11 adds to this list with its new Variables Manager and much-improved Data Editor, both of which provide tools that make tasks...

In this presentation, I introduce a new Stata command called threg. The command estimates regression coefficients of a threshold regression model based on the first hitting time of a boundary by the sample path of a Wiener diffusion process. The regression methodology is well suited to...

In this presentation, we present a procedure and an illustrative application of a user-written Data Envelopment Analysis (DEA) program in Stata. DEA is a linear programming method for assessing the efficiency and productivity of units and a popular managerial tool for measuring performance of...

We discuss how econometric estimators may be efficiently programmed in Mata. The prevalence of matrix-based analytical derivations of estimation techniques and the computational improvements available from just-in-time compilation combine to make Mata the tool of choice for econometric...

In U.S. political campaigns, the use of propensity scores of voters, predicted attributes, such as partisanship or turnout likelihood, became quite popular in recent years. Such applications, often called microtargeting, range from survey sampling to voter contacts via direct mail, phone, or...

Meta-analysis of diagnostic accuracy studies may be performed to provide a summary measure of diagnostic accuracy based on a collection of studies and their reported empirical or estimated smooth ROC curves. Statistical methodology for meta-analysis of diagnostic accuracy studies has largely...

The display of data or of results often entails the preparation of a variety of table-like graphs showing both text labels and numeric values. I will present basic techniques, tips, and tricks using both official Stata and various user-written commands. The main message is that whenever graph...