How do I make a vector of doubles continuous?

10 次查看（过去 30 天）
Leo Tu
Leo Tu 2022-4-21
评论： Jon 2022-4-22
I have a row vector of length 50, named 'se', and when plotted it is a wave function. I need to convert this discrete time series into a continuous one so that I can obtain values such as se(1.2) for example. Is there a way to do this?

请先登录，再回答此问题。

采纳的回答

Jon
Jon 2022-4-21
编辑：Jon 2022-4-21
use interp1
so for example if you wanted "continuous" values at 1.2, 2.8, and 3.7, 33.5
xq = [1.2,2.8,3.7,33.5]; % query points where you want values
x = 1:50; % indices of orginal discrete series
seq = interp1( x,se,xq)
  3 个评论
显示 1更早的评论
Leo Tu
Leo Tu 2022-4-21
编辑：Leo Tu 2022-4-21
Thank you @Jon, is there a way to use this to have values at any real number query point? So if my vector is of length 50, then I can get a value at any real value query point between 0 and 50. Unless the best way is to have my query points as something like 0:0.001:50 ?
Jon
Jon 2022-4-22
Yes you can query any real value between 0 and 50. Note this is what I show in my original example where just to illustrate that they could be arbitrary real numbers between 0 and 50 I had query points [ 1.2,2.8,3.7,33.5] If you want your to have values for se at equally spaced query points than you can define your query points as 0:0.001:50. Either way is fine, it just depends upon what you need for your application.

请先登录，再进行评论。

更多回答（0 个）

类别

在 Help Center 和 File Exchange 中查找有关 MATLAB 的更多信息

标签

产品


版本

R2021a

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by