public function __construct($aDataX, $aDataY)
{
if (count($aDataX) !== count($aDataY)) {
JpGraph::Raise('LinearRegression: X and Y data array must be of equal length.');
}
$this->ix = $aDataX;
$this->iy = $aDataY;
}
function AddY($aN, &$aPlot)
{
if ($aPlot == null) {
JpGraphError::Raise("Graph::AddYN() You tried to add a null plot to the graph.");
}
if (is_array($aPlot) && count($aPlot) > 0) {
$cl = strtolower(get_class($aPlot[0]));
} else {
$cl = strtolower(get_class($aPlot));
}
if ($cl == 'text' || $cl == 'plotline' || $cl == 'plotband') {
JpGraph::Raise('You can only add standard plots to multiple Y-axis');
} else {
$this->ynplots[$aN][] =& $aPlot;
}
}
