# Criteria used for Logarithmic Scaling

## Content



The following additional criteria must be following for logarithmic axes:

*   Any data that is less than or equal to zero is not graphed (it is treated as a data hole), since a logarithmic axis only handles data values that are greater than zero. For the same reason, axis and data minimum/maximum bounds and origin properties cannot be set to zero or less.
*   Axis numbering increment, ticking increment, and precision properties have no effect when the axis is logarithmic.
*   For a logarithmic X-axis, the chart type must be either plot, bubble, area, HiLo, HiLoOpenClose or candle. For the Y-axis, the chart type must be either plot, bubble, area, polar, HiLo, HiLoOpenClose, candle, radar or filled radar.
*   The annotation method for the X-axis cannot be TimeLabels.

## See Also

[UnitMajor and Logarithmic Axes](/componentone/docs/win/online-chart2d/chartareaandplotarea/axes/axislogarithmicscali/unitmajorandlogarith)