Showing three lines on a scatter graphs issue

[wrightta]

I have a colleague who has created a scatter chart which also shows a secondary axis. Two piece of information and the lines are correct, however, even though the third piece of information is included within the source data nothing appears in my chart but it does in my legend. How can I show this third piece of information inside the chart? Many thanks

 

[Gerald Higgins]

There is no fundamental reason why you can't show 3 data series on a scatter chart.

Some possible reasons why it's not appearing...
1) the data is all either below the axis minimum, or above the axis maximum
2) the series has been formated to have no line, no symbol, so it's invisible.
3) it's there, but it's entirely hidden by another series