Hey Adam What you are suggesting is interesting but might cause a lot of confusion, for example: - the values -10 and 1/10 will be positioned in the same height - the value 0.5 will be positioned lower than -0.5 In general, the positioning function you are suggesting is not monotone nor is it continuous.
Wikipedia: http://en.wikipedia.org/wiki/Logarithmic_scale seems to only describe logarithmic scale of positive values Do you have any reference to literature or an example of a well known charting tool that behaves that way? Badtnik On Mon, Aug 9, 2010 at 6:30 PM, Adam <[email protected]> wrote: > Why does the logScale configuration option of the Column and Bar > Charts require all values to be positive? (according the the > documentation) > > There is no reason for negative values not to have a log scale. The > scale should be calculated according to the absolute values of the > data. So the negative log scale would be something similar to -1, -10, > -100, ... > > -- > You received this message because you are subscribed to the Google Groups > "Google Visualization API" group. > To post to this group, send email to > [email protected]. > To unsubscribe from this group, send email to > [email protected]<google-visualization-api%[email protected]> > . > For more options, visit this group at > http://groups.google.com/group/google-visualization-api?hl=en. > > -- You received this message because you are subscribed to the Google Groups "Google Visualization API" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/google-visualization-api?hl=en.
