IsoSource Help

Graphing the Histogram Data

Select [Graph] from the menu bar.


Select [File] from the menu bar.


Select a file by clicking on it.


Source graph #1 of 7 is now displayed.

Note that the Y axis is shown as Percent Frequency, rather than the raw frequency counts for each Source Proportion value on the X axis (as in the .TOT file). This was done to standardize the Y axis somewhat since the raw frequency counts can vary over several orders of magnitude between data sets. The Percent Frequency is calculated as 100% times the frequency for a particular Source Proportion value divided by the total frequency (N, the number of solutions found). The Y axis is always scaled in increments of 5%, with the maximum set by the highest Percent Frequency found for any of the sources.
Select the [Next] button to display the graph of the next source.
Notice that the [Next] and [Print] buttons are now active.


Source graph #2 of 7 is now displayed.


Select the [Next] button again to see the graph of the next source.
Notice that the [Previous] button is now active.


Source graph #3 of 7 is now displayed.


To go back to a previously displayed graph select the [Previous] button on the menu bar.


Source graph #2 of 7 is now displayed.