How to input two values as one value

1 次查看（过去 30 天）
Anthony Koning
Anthony Koning 2023-4-27
评论： KSSV 2023-4-27
Hi, I'm wondering how two different values can be combined into one individual value. For example, I have a signal Y with 10000 samples, with 100 samples equalling to 1 second. If I were trying to plot Y in terms of seconds, that is rather easy to do by using a code
samples = length(Y);
fs = 100;
time = 0:1/fs:samples/fs-1/fs;
and then simply plotting plot(time, Y). However, If I wanted to do something like plotting the power spectrum density of the signal using pwelch but only for the section between 20 and 40 seconds, how would I code this? Thanks

请先登录，再回答此问题。

采纳的回答

KSSV
KSSV 2023-4-27
samples = length(Y);
fs = 100;
time = 0:1/fs:samples/fs-1/fs;
iwant = Y(time>=20 & time<=40)) %<-- this pciks Y for time between 20 and 40 seconds
  2 个评论
Anthony Koning
Anthony Koning 2023-4-27
编辑：Anthony Koning 2023-4-27
And in this case, to take the pwelch, you would simply define pwelch(iwant), correct?

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 Spectral Estimation 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