Fixed a problem in plotRangeForField:. When there was no data, this could cause problems. A check has been added for no data.
Fixed a problem in plotRangeForField:. When there was no data, this could cause problems. A check has been added for no data.

escoz/core-plot,escoz/core-plot,escoz/core-plot,escoz/core-plot,escoz/core-plot