BINSCATTERHIST: Stata module to produce binned scatterplot with marginal histograms

binscatterhist generates binned scatterplots, with the option to plot the variables underlying distribution. Binned scatterplots provide a non-parametric way of visualizing the relationship between two variables, binscatterhist adds to the popular program used to produce such scatterplots, binscatter, the tools to furthermore plot histograms of the scattered variables. As binscatter, binscatterhist solves the problem of scatterplots with a large number of observations: it groups the x-axis variable into equal-sized bins, computes the mean of the x-axis and y-axis variables within each bin, then creates a scatterplot of these data points. binscatterhist allows in addition to create histograms of the scattered variables, and include them in the graph for a more complete representation of the data. binscatterhist provides the same options as binscatter: it provides built-in options to control for covariates before plotting the relationship (see Controls), and will plot fit lines based on the underlying data, and can automatically handle regression discontinuities (see Fit Line).