Description:
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i am using jpgraphs to generate reports, and i use php to set the values. i have some problems in setting minimum value. can anybody help me. following is my code.



Reproduce code:
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function getsumofmindata($datay)
{

    for($i=0; $i<count($datay);$i++)
	{
		if($datay[$i] < $datay[$i+1] )
		$datay[$i+1]  = $datay[$i];
	}
	return $datay[count($datay)-1];
}

Expected result:
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return value should get minimum value

Actual result:
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giving some junk value