SetYDataLabelPos — Position and control Y data labels
$plot->SetYDataLabelPos($ydlp)
SetYDataLabelPos determines if and where Y data labels
are drawn. Currently, Y data labels are only implemented for 'bars' plot
types. The Y data label shows the Y value above each bar.
This is shown in Example 5.19, “Bar Chart with Data Labels”.
$ydlpA string indicating the desired position for the Y data labels. The value 'plotin' enables Y data labels for bar charts. The value 'none' disables the Y data labels. These are the only currently supported values.
The default is not to draw Y data labels. These labels are only available for plot type 'bars'. If the position is set to 'plotin', the labels will be drawn above the bars (or below the bars, for negative values). This works best if the values are short enough to fit.
The Y data label feature for bar graphs was added to PHPlot-5.0rc3.