How can PHP developers ensure that the legend corresponds accurately to the data in PHPLOT graphs?

To ensure that the legend corresponds accurately to the data in PHPLOT graphs, developers should make sure that the labels in the legend match the labels used for each data series. This can be achieved by setting the legend labels explicitly when adding data to the graph. 

// Example code snippet to ensure legend corresponds accurately to data in PHPLOT graphs

// Create a new PHPLOT graph object
$graph = new PHPlot();

// Add data series to the graph with explicit legend labels
$data = array(
    array('Label A', array(0, 1, 2)),
    array('Label B', array(1, 2, 3)),
    array('Label C', array(2, 3, 4))
);

$graph->SetDataValues($data);

// Set the legend position and format
$graph->SetLegendPosition(0.1, 0.1, 'plot', 'left');
$graph->SetLegendStyle('left', 'left');

// Output the graph
$graph->DrawGraph();

Keywords

PHPLOT legend data accuracy correlation

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