<p>I have a BIRT chart that displays hour in X axis and readings in Y axis. I want cumulative values in Y axis i.e. each hour reading should add till previous hour reading to it, so that user can see the sum of total reading for a particular hour. I've checked other topics regarding this. I tried suggested solutions like Sum, Count, Distinct Count, RUnning Sum, Running count, etc in Y axis Series in select data tab. None of them worked correctly. Can you please suggest me tried and verified solution for this issue.</p>
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<p>Regards,</p>
<p>Niranjan.</p>
