2007-11-27 Logarithmic scale for line, column and bubble chart

Since v 1.3.2 Line & area, Column & Bar and Scatter & Bubble can have logarithmic scale axis instead of standard linear. In logarithmic axis equal distance along it represents an equal percentage change. It is very useful if you want to present large scale data on the same chart.

To make your axis logarithmic, all you need to do is to add:

<logarithmic>true</logarithmic>

in your axis settings.

Line & area chart can have logarithmic y left and right axis, column & bar chart - value axis, scatter and bubble chart - both x and y axis.

More info about logarithmic scale:

http://en.wikipedia.org/wiki/Logarithmic_scale

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