通过对5个已知点的插值获得新点的（X，Y）坐标 [英] Obtaining (X, Y) coordinates of new points by interpolation for 5 known points

问题描述

我有5个数据点（实验性的）。我想进行三次样条插值并提取x = 0到50之间的'100'点的（x，y）坐标。有人可以帮我解决这个问题。我是初学者所以我没有太多关于它的想法。我需要matlab或python中的程序。积分如下。有人请帮助我。



积分为（0,0.256）（12.5,0.218）（25,0.165）（37.5,0.247）（50,0.294）。

I have 5 data points (experimental). I want to carry out cubic spline interpolation and extract (x,y) co-ordinates of '100' points between x=0 to 50. Can someone please help me with this problem.I am a beginner so i don't have much idea about it. I need a program in either matlab or python. Points are given below. someone please help me.

Points are (0,0.256) (12.5, 0.218) (25, 0.165) (37.5, 0.247) (50, 0.294).

推荐答案

这是错误的做法。



正确的做法是：

This is wrong approach.

Right approach would be this:

Data ──> Interpolated Data ──> Graphical plot
          │
          └──> Data you need

相反，您正试图从图形中获取数据。这是错的。图形应该是只写的。

-SA

Instead, you are trying to get data back from graphics. This is wrong. Graphics should be write-only.

—SA

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