Finding daily min and max values for time series data
24 views (last 30 days)
Show older comments
Sunshine Seventy
on 6 Sep 2022
Edited: Cris LaPierre
on 6 Sep 2022
I have a time series of data at 15 minute time intervals across a 400 day period. I am trying to extract the maximum and minimum from one column of data for each day, and then calculating the difference. I can get the maximum or minumum for each day but am unsure of how to get all of the maximim and minimum values for the entire dataset.
0 Comments
Accepted Answer
Cris LaPierre
on 6 Sep 2022
Edited: Cris LaPierre
on 6 Sep 2022
Date = datetime(2016,6,4)+minutes(0:15:3000)';
X = rand(size(Date));
Y = rand(size(Date));
Z = rand(size(Date));
tbl = table(Date,X,Y,Z)
out = groupsummary(tbl,"Date","day",["max","min"],"Z")
out.Diff = out.max_Z-out.min_Z
0 Comments
More Answers (0)
See Also
Categories
Find more on Time Series Events in Help Center and File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!