Convert x axis to seconds

19 次查看（过去 30 天）
Nina Perf
Nina Perf 2021-11-22
评论： Voss 2021-11-24
Hi,
I need help converting the last 2 plots (plot 2 and plot 3) x axis, to the time domain in seconds, given a data signal with a specific fs.
fs =20;
windowsize = 30; % window size of 50 samples
len = length(data)
nwindow = floor(windowsize)
[min_t, min_o] = min(data_rms);
figure;
% plot 1
plot(1/fs:1/fs:length(data)/fs, data); % this works: Time(seconds)
hold on;
% plot 2, data rms
plot(([1:nwindow]-1)*windowsize, data_rms, 'k*'); % help
% plot 3, min data rms
plot((min_o-1)*windowsize, min_t, 'ro'); % help
hold off
Thank you in advance!

请先登录，再回答此问题。

回答（1 个）

Voss
Voss 2021-11-23
If you do the following, does it look right?
% plot 2, data rms
plot(([1:nwindow]-1)/fs, data_rms, 'k*');
% plot 3, min data rms
plot((min_o-1)/fs, min_t, 'ro');
  2 个评论
Nina Perf
Nina Perf 2021-11-24
编辑：Nina Perf 2021-11-24
No. It didn't work. Do you have any other suggestions?
Voss
Voss 2021-11-24
What's wrong with it? Maybe post a screenshot or two.

请先登录，再进行评论。

类别

在 Help Center 和 File Exchange 中查找有关 Multirate Signal Processing 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