In the doc, under refresh parameter it states
If the command returns a single value per each series, the chart will add a new point to the end. Otherwise, the whole chart data is replaced with the new data.
I'm doing some analysis on the frequency of distinct live generated system alerts that are logged into a database, and sometimes my sql query will come back with only 1 value, and that's normal, however I don't want it to scroll and create new points in my bar graph, but rather update. Is there a way to disable this behavior while still using refresh?