Insights are available with certain plot types to help draw attention to interesting, statistically significant regions of various graphs. These are written in plain English and are driven by the feature that is mapped to Color. By default, one insight is shown per color. However, if additional insights are desired for a given color, the dropdown list can be used to specify which color to investigate.
Insights for Scatter Plots
Insights are generated for scatter plots to highlight regions of the graph that show statistically significant distributions of points based on their color. Pie charts are used to highlight the breakdown of points within each region of interest.
Insights for Histograms
Insights are generated for histograms when categorical columns are mapped to the spatial dimensions, if the software detects a significant distribution. In these situations, insights identify categories that have interesting behaviors based on the breakdown of the colored points that fall within that bin.
Insights for Line Plots
Insights for line plots are generated when a mapping has been made in Line Plot mode with distinct lines. These insights are driven based on what has been mapped to the X-axis (for example, a column containing dates or times would work well) and show all the groups of lines that are correlated. The dropdown list can be selected to offer a breakdown per line and highlight which lines are either correlated or anti-correlated. The algorithm uses normalized cross-correlation (NCC) with a threshold of greater than 0.9 to determine whether two lines are correlated.