All Forums  Origin中文论坛  Origin 中文论坛 (Chinese Origin Forum)  下图如何积分并求面积

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Screensize: 640 x 480 800 x 600 1024 x 768 1280 x 1024 UserName: Password: Anti-Spam Code: Format Mode: Basic  Help  Prompt  Format: Font Andale Mono Arial Arial Black Book Antiqua Century Gothic Comic Sans MS Courier New Georgia Impact Lucida Console Script MT Bold Stencil Tahoma Times New Roman Trebuchet MS Verdana   Size 1 2 3 4 5 6   Color Black Red Yellow Pink Green Orange Purple Blue Beige Brown Teal Navy Maroon LimeGreen Message: * HTML is OFF * Forum Code is ON Smilies [quote][i]Originally posted by Linda_zeng[/i] [br][img]http://www.originlab.com/ftp/forum_and_kbase/Images/tieba12.jpg[/img] 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： [img]http://www.originlab.com/ftp/forum_and_kbase/Images/tieba13.jpg[/img] 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。 [/quote]   Check here to include your profile signature.