The Visualizer is a tool for analyzing data. Simulation data from a variety of objects (monitors, parameter sweeps...etc) can be sent to a Visualizer.
The upper-left portion of the window is the plot area, which displays the current data defined by the settings in the upper-right of the window (plot settings). The following sections describe the many options available for controlling what data will be displayed in the plot area. These sections can be minimized if more area for plotting is required. Data that gets added to the Visualizer is retained until it is removed (i.e., with the "Remove" button or by pressing "X" on the top right corner of the window). This is useful for comparing results across different sets of data.
This introductory video shows how the data visualizer can be used to view simulation data.
visualize script command