Hi Tom, Yes, I think that a cumulative risk graph for the v-Wave would be an excellent tool to have.
On another front could you write out the formula for this? I must be reading the wording wrong as I don't get what your picture shows when I try to do it in Excel. It may be I screwed up the formula but it might be the data I'm using, only the last couple of months for the DIA is not quite the same as they were using.
Thanks,
Allen