I have a line chart. The line represents the average thickness of material we apply to glass. The Y Axis represents the thickness and the X axis represents time. Say the range of values on the Y axis is between 1 and 10. The average thickness is say typically between 3 and 5, but must fall within a range, on the low side of 2 and on the high side of 7. I would like to shade the area of the graph between 2 and 7, to indicate the acceptable range of values. Ca开发者_Python百科n this be done?
Add a second value series, and change it to the "Range" chart type. This will allow you to set the high / low Y values discretely. Rather than choosing a field for these values, just edit the expression and set the static values (in your case, 2 and 7).
From there, edit the series "fill" properties - select Pattern, and find one that works for ya. There a good set of % fills (5 percent, 10 percent, etc.) midway down the list.
Hope this helps.
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