All,
I am trying to plot indoor temperature and solar radiation on the same chart.
The Y-axis scale for indoor temperature (data range B2:B4241) should be 40 to 80.
The Y-axis scale for solar radiation (data range C2:C4241) should be 0 to 1000. This is my secondary axis.
I was able to add the secondary axis to the chart, but I can't figure out how to tell the chart that I want C2:C4241 plotted against the secondary axis.
Any suggestions?
Thanks,
-Bill