Hi,
There seems to be a bug in the Histogram node. This can be replicated with two string columns which have a small number of common classes/bins in each (i.e. Molecular Weight binned into 4 bins, and LogP binned into 4 bins)
If you take one of these class columns and undertake a One2Many on this so you have these bins now as separate columns with the rows represented as 0 or 1.
Now if you use the Histogram node, and Bin by the remaining String column and Aggregate on the resultant One2Many columns, choosing Sum as the aggregation method, you have a nice bar graph showing the distribution of one property in the various bins of the other property.
I have now selected a single bar on this graph by clicking on it, and chose HiLite from the menu, however it then seems to HiLite multiple bars and in a resultant Interactive Table Viewer node I have set up to display HiLited rows only, there are far more results in the Interactive Table Viewer than whats represented in the single bar I highlighted.
Any idea whats going on.
Simon.