フィルターのクリア

How to bin struct fields based on value in another field?

3 ビュー (過去 30 日間)
Nicholas Kavouris
Nicholas Kavouris 2023 年 1 月 22 日
回答済み: Walter Roberson 2023 年 1 月 22 日
I have a structure with multiple fields. I would like to plot a histogram of values of data in one field based on conditions in another field of each row of the struct. How would i do this?
EX:
test(1).initial=13
test(1).final=43
test(2).initial=8
test(2).final=58
test(3).initial=[26,14]
test(3).final=52
i would like to bin test.final so rows with corresponding test.initial(1) values 0-10, 11-20, 20-35 are grouped together
  3 件のコメント
Nicholas Kavouris
Nicholas Kavouris 2023 年 1 月 22 日
i only want to bin based on test.initial(1), any index beyond 1 is ignored
Nicholas Kavouris
Nicholas Kavouris 2023 年 1 月 22 日
i added this in as the struct i am working with has a variable number of indices in each row in the column id like to sort by

サインインしてコメントする。

回答 (1 件)

Walter Roberson
Walter Roberson 2023 年 1 月 22 日
initials = arrayfun(@(S) S.initial(1), test);
finals = [test.final].'; %assuming only one value per entry
bins = discretize(initials, [0 11 21 35]);
splitapply(@histogram, finals, bins);
legend({'[0-11)', '[11-21)', '[21-35]'});
Your bin list included 20 twice, and does not include the range between 10 and 11 (exclusive), so I had to guess what you wanted.

カテゴリ

Help Center および File ExchangeHistograms についてさらに検索

Community Treasure Hunt

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

Start Hunting!

Translated by