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 如何标出点线图上非数据点的点？		  New Topic  Reply to Topic
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MexUg

China
1 Posts
Posted - 12/05/2024 :  10:50:37 AM  Show Profile  Edit Topic  Reply with Quote  View user's IP address  Delete Topic
假设我用（1，2），（3，5），（7，8），（9，14）四个点画一张点线图，然后要标出点线图上纵坐标y=10的点，我要怎么做？数据点是有限的，但点线图的点是无限的，用数据读取器只能读到数据点，屏幕位置读取也不能固定在点线图上所以有不小误差。

YimingChen

1664 Posts
Posted - 01/03/2025 :  2:24:43 PM  Show Profile  Edit Reply  Reply with Quote  View user's IP address  Delete Reply
需要用到插值。可以用Origin里的模板。 到菜单File -> New -> Workbook -> Interpolate X or Y. 见下图。
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