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bj
 
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You could separate the positive and negative data and plot the absolute
values of the negative vales in a different color

"Hoochi Coochi Man" wrote:

Hi

I am trying to plot a scatter chart with percentage growth as the y axis.
The range of growths runs from negative to plus several thousand. I would
like to use a log scale but clearly this will not cope with negatives. Any
ideas would be gratefully received!
Many thanks
Keith