# Histograms

Tinderbox containers can display a variety of graphs to describe their contents. For tabular summaries of the contents of a container, see Summary Tables.

Here, an agent has gathered notes concerning the number of repeat purchases made by selected customers, and sorted them by the time since their most recent purchase. The newest customers come first; since they’re new, few have had occasion to repurchase the project. Interestingly, though older customers have repurchased more often, it’s clear that some improvement made about half-way through the product’s life makes those users more eager to buy more.

To add a plot of histogram to a container, select the container and open the Plot pane of the Appearance Inspector.

First, choose the sort of plot you prefer: a line graph or plot, a histogram, and x/y plot, or a pie chart. Then, choose what attributes (or expressions based on attributes) you wish to display. You may also set the axis limits, the colors of the data and background, and the opacity of the background. If the plot background is not completely opaque, the container’s contents are drawn behind the plot.