GreaseMunky User Guide

Graphs

Graphs in GreaseMunky come in two forms. They plot a single set of data points for inspection, or they plot data points from different vehicles so they can be compared. The two forms are graphs are nearly identical, but single plot graphs shade the plot under the line rendered by the data points.

The plots in GreaseMunky look like this:

These plots consist of a line plot and legend. The line plot graphs data values (in this example, a fuel economy plot) along the Y-axis, and time along the X-axis. The line plot can be scrolled left and right with single finger swipes across the screen. The gray lines indicate the ranges of values being plotted. You will see labels over the lines that indicate the actual value at that height in the line plot. In fuel economy plots, you will occasionally see a data point that is rendered as a gray circle. This indicates a missing fill-up or a partial fill-up. You may want to disregard such points as there is no way to accurately compute the fuel economy if there is missing data, which is what these data points represent. In this example, the data point shows a mileage approaching 120 MPG; note that the typical value is only about 45 MPG in this vehicle.

Below the line plot, the timeline is rendered. Dates are drawn only if they will fit (that is why some times there are three months between a label, and at others only two). Dates are indicated by the month and the last two digits of the year.

At the bottom of the graph, the legend indicates which vehicle is associated with each color line.