legendPos
Optional. The position of the legend. You can add an 's' to any value if you want empty legend entries in legendText to be skipped in the legend.
Default value
Legend to the right of the chart, legend entries in a vertical column.
Valid values
Right of chart, in vertical column
Bottom of chart, in horizontal row
Bottom of chart, in vertical column
Top of chart, in horizontal row
Top of chart, in vertical column
Left of chart, in vertical column