extracting values at set intervals from a vector

Question

Richard 2012-11-6

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/52927-extracting-values-at-set-intervals-from-a-vector

在 MATLAB Online 中打开

From the following vector:

depth = [0:0.1:20];

How could I create a new vector that had the same data as 'depth' but a value taken every 0.5, providing an outcome of:

d2 = depth(1:5:end);

Since my data is not actually spaced at 0.1 intervals but at randomly distributed intervals I cannot apply the simple approach shown above. What would be the best methods of achieving this?

0 个评论
显示 -2更早的评论隐藏 -2更早的评论

请先登录，再进行评论。

请先登录，再回答此问题。

Answer 1

Jan 2012-11-6

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/52927-extracting-values-at-set-intervals-from-a-vector#answer_64466

Use interp1 for a linear interpolation.

1 个评论
显示 -1更早的评论隐藏 -1更早的评论

Richard 2012-11-6

编辑：Richard 2012-11-6

Is there another way o doing this, the overall aim of what I am attempting to achieve is to measure the uncertainty of interpolation methods. Isn't there a method for taking the first value and then every value in the vector which is + 0.5 of the last? maybe use floor if they are not exact?

请先登录，再进行评论。