how to return time-weighted mean using getdatastat()

I wonder will the following code return time-weighted mean to avg?
I have defined myPhysicalStock as a tracked variable and checked it to be time-weighted.
The mannual on getdatastat() doesn\'t tell me how to return time-weighted mean.
Thanks


treenode PhysicalStock = node("/Tools/TrackedVariables/myPhysicalStock", model());
double avg = getdatastat(STAT_MEAN, getbundlenrentries(PhysicalStock), getbundlevalue(PhysicalStock, count - 1, 1))

First, I should notify you that in the next version (7.7 coming out in a month or two), this code will not work because we\'ve restructured the Tracked Variable such that the bundle is no longer stored on the node itself, but rather a sub-node. Also, I think in 7.7 you will be able to call getsdtvalue(trackedVariableNode, "mean") to get the mean.

That said, I think the way you would calculate the mean is:

int numEntries = getbundlenrentries(PhysicalStock);
double totalTime = getbundlevalue(PhysicalStock, numEntries - 1, 0) - getbundlevalue(PhysicalStock, 0, 0);
double weightedSum = getdatastat(STAT_SUM, numEntries - 1, getbundlevalue(PhysicalStock, count - 1, 1) * (getbundevalue(PhysicalStock, count, 0) - getbundevalue(PhysicalStock, count - 1, 0));
double weightedMean = weightedSum / totalTime;