hi
im gonna draw a graph containe 3 variables , x , y1 , y2
i have one x and two y's , can i draw a graph like that by excel ?
there are two graphs that i want combine them:
http://8201.1.img98.net/out.php/i133521_untitled.jpg
i want something like this :
http://8201.1.img98.net/out.php/i133...kviewchart.png
im not sure if excel is able to do that, if not plz introduce other software, thank you very much
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