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Multilevel Tobit regression models in Stata Tobit models are made for censored dependent variables, where the value is sometimes only known within a certain range. Chemic...

Written by Kristin MacDonald, Director of Statistical Services, this post discusses how to transform graphs in Stata to get the style you want. Click to view Stata's late...

In this post, we will look at a couple of community-contributed commands for fitting Bayesian models to your data. Stata 14 introduced Bayesian functionality for the firs...

Threshold regression for time series in Stata In time series analysis, sometimes we are suspicious that relationships among variables might change at some time. The new t...

What is it for? When you are fitting a simple time-series regression to your data, you have to make an assumption that indpendent (exogenous) variables in the regression ...

More data is available than any point in history and often a simple graph can go a long way in presenting complex relationships between data elements. Stata offers an imp...

Written by Kristin MacDonald, Director of Statistical Services, this post expounds upon a previous blog post, "Nonparametric regression: Like parametric regression, but n...

Written by Kevin Crow, Senior Software Developer, this post talks about updating the community-contributed command tab2xl with tab2docx, which writes a tabulation tab...

What is non-parametric regression? Stata includes a command npregress, which fits a smooth function to predict your dependent variable (endogenous variable, or outcome) u...

Every day a large amount of data is produced. Data take on different formats and shapes; from data points to images and written words. A big source of data is social medi...