How to calculate mean to an equal area in Matlab?

1 次查看（过去 30 天）
Xuefei Sun
Xuefei Sun 2021-2-22
评论： Xuefei Sun 2021-2-22
I have 900000 time data and 900000 speed data. I need to calculate the mean speed for each 30secs and plot them. How can I get that? Thank you!
  2 个评论
James Tursa
James Tursa 2021-2-22
Running average, or average of blocks? Is the time data equally spaced?
Xuefei Sun
Xuefei Sun 2021-2-22
Yes, the time data is equally spaced from 1 sec to 900000 sec. And I should calculate mean speed for each 3 sec. Like from 1 to 3, 4 to 6, 7 to 9, ect. And plot them

请先登录，再进行评论。

请先登录，再回答此问题。

采纳的回答

James Tursa
James Tursa 2021-2-22
编辑：James Tursa 2021-2-22
n = 3; % or whatever number of samples you need, must be divisible into size of data
time_average = mean(reshape(time_data,n,[]));
speed_average = mean(reshape(speed_data,n,[]));
plot(time_average,speed_average)
  3 个评论
显示 1更早的评论
Xuefei Sun
Xuefei Sun 2021-2-22
But I still have another problem. If I block the time, it seems like the mean speed responding to a certain time(the mean time). But I want to plot the speed sustained in that 3 sec. I mean I want to plot a stragnt line in each 3 sec. Could you teach me how to do that?
Xuefei Sun
Xuefei Sun 2021-2-22
I delete mean for the time_average, and I got it then. Thank you so much.
time_average = reshape(time_data,n,[]);
speed_average = mean(reshape(speed_data,n,[]));
plot(time_average,speed_average)

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

Community Treasure Hunt

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

Start Hunting!

Translated by