Skip to content

Plotting and Interactivity Overview

Upon data type clarification, the plotting module will fully open and you will be greeted with the following view:

DataViz_Plot_LandingPage

The plotting module is divided into three main sections:

  • The main plot area
  • The plot controls
  • The MRI views (seen below the main plot area)

Plot Controls

DataViz_Plot_PlotControlParts

These 4 panels govern the behavior of this module. In summary:

  • Plot Variables, where you specify the type of plot to be displayed (scatterplot for continuous x continuous, swarmplot for categorical x continuous, etc.)
  • Subsetting Settings, where you can subset the data by several criteria in order to focus on a specific series of subjects/visits/sessions/scans
  • MRI View Controls, for controlled the slices displayed for a loaded MRI volume
  • Swarm Plot Visuals or Scatter Plot Visuals, where you can personalize the appearance of the plot (i.e. labels, grid line thickness, etc.)

Plot Variables

DataViz_Plot_PlotVariables

The Plot Variables panel controls the nature of the plot and the data that is displayed. Several inputs are available:

  • Graph Type:
    • Scatterplot: Continuous x Continuous data analysis
    • Swarmplot: Categorical x Continuous data analysis
  • X Axis: Which column to use for the x-axis. Selections are dependent on the Graph Type selected.
    • If the Graph Type is Scatterplot, then the X Axis can be any continuous data type column.
    • If the Graph Type is Swarmplot, then the X Axis can be any categorical data type column.
  • Y Axis: Which column to use for the y-axis. For the time being, this can only be a continuous data type column, as both plot types use continuous values for their dependent (y) variable representation.
  • Color: An optional column that is only available if the Graph Type is Scatterplot. This column is expected to be categorical data that will separate data points into different color groups, the levels of which will be displayed in a legend generated on the right side of the plot.
  • Additional Hover Data: As the plots are interactive, you can hover over data points to see their not only the x and y values, but also any additional columns that you specify here. By default, if this field is left blank, the hover data that is displayed over each data point will include:
    • The Subject/Visit ID
    • The Session ID
    • The X and Y values
    • The color group (if applicable)

The remaining plot controls will be covered in their own sections (see below). For now, let's proceed to rendering a basic scatterplot.