Take the nanmean of every four points in a dataset.

Question

Rebecca Ellis 2018-12-5

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/434061-take-the-nanmean-of-every-four-points-in-a-dataset

关闭： MATLAB Answer Bot 2021-8-20

I have a data set of 109 points, each point repesents 15min. I need to get hourly averages of this data set which also contains nans as well as the time attached with it. Any help would be much appreciated.

%% so far:
st_time=datenum('23-May-2017 09:15:00');
t=st_time+(0:1/27.25):(length(East)-1)*1/27.25);
ADV_time_avg=st_time+(0:1/227.25):(length(East)-1)*1/27.25);
Flux4 = Flux3;
means5 = nanmean(Flux4, 2);
for i =  1:length(Flux4)
    hourav(i) = nanmean
end 

0 个评论
显示 -2更早的评论隐藏 -2更早的评论

此问题已关闭。

Answer 1

per isakson 2018-12-5

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/434061-take-the-nanmean-of-every-four-points-in-a-dataset#answer_350772

编辑：per isakson 2018-12-5

在 MATLAB Online 中打开

"I need to get hourly averages of this [15-min] data set which also contains nans"

Old time approach

%%
data_set = randn(109,1);    % sample data
%% 
data_set(end) = [];         % multiple of 4
%%
m4 = reshape( data_set, 4,[] );
%%
avg = nanmean( m4, 1 );
%%
hourly_data_set = reshape( avg, [],1 );