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 下图如何积分并求面积		  New Topic  Reply to Topic
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Linda_zeng

China
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Posted - 05/13/2016 :  03:09:04 AM  Show Profile  Edit Topic  Reply with Quote  View user's IP address  Delete Topic


这个你要首先把数据手动拆分成上曲线跟下曲线两部分，然后以下曲线为Baseline对上曲线进行积分，如下图所示：


具体步骤：
1. 拆分数据为曲线1（黑色）和曲线2（红色）
2. 选中两条曲线把两条曲线画在同一副图中
3. 去到菜单Gadgets: Integrate打开积分快捷工具（黄框）
4, 在integration选项卡，设置Area Type为Absolute Area
5. 在Baseline选项卡，设置Mode 为Use Existing Dataset，然后点右边的三角按钮选黑色曲线为dataset
6.点击OK按钮，你就可以看见灰色为积分区域。Area显示在黄框顶部。
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