AVG, occurence, vlook up, groups
1 view (last 30 days)
Show older comments
Marek Drliciak
on 10 Nov 2022
Moved: Image Analyst
on 21 Nov 2022
Hello,
I would like to ask for help in determining the average of values in specific groups of data in a database. I processed the issue in excel in the attachment. This is a preview.
Thank you
0 Comments
Accepted Answer
Image Analyst
on 10 Nov 2022
Try this:
data = readmatrix('Problem description.xlsx', 'Range', 'b3:c31')
averages = grpstats(data(:, 2), data(:, 1), "mean")
counts = histcounts(data(:, 1))
3 Comments
Image Analyst
on 11 Nov 2022
Then you need to identify each group in column 1 with a separate ID number which you can do with bwlabel in the Image Processing Toolbox.
data = readmatrix('Problem description.xlsx', 'Range', 'b3:c31')
% Identify separate groups:
[groupIDs, numGroups] = bwlabel(data(:, 1))
averages = grpstats(data(:, 2), groupIDs, "mean")
counts = histcounts(groupIDs)
More Answers (0)
See Also
Categories
Find more on Spreadsheets in Help Center and File Exchange
Products
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!