I'm trying to create line or scatter charts where not every column has a value.
ie one line has 4 points and another only has 3 points.

In both chart types the returned graph has erratic and very incorrect results
in the plotted line and the positioning of the data point. This is especially
so if the second line starts at column 2.

I can create the charts perfectly using Webcharts3D Designer where empty
columns are given empty values and WebCharts3D ignores that point and moves
onto the next.

But if I tweak CFChartData to input an empty value="", CF throws an error
saying the value is not numeric.

Does anyone know whether it's possible to input a "null" value so these charts
draw correctly?

Thanks
Peter