Issue in using splitapply to plot data
4 ビュー (過去 30 日間)
古いコメントを表示
Hi,
I have an array with 14 columns. Column 3 contains groups of numbers. I would like to plot column 1 vs. column 4 for each group of column 3. I have written the following code,
G = findgroups(val(:, 3));
splitapply(@plot, val(:, 1), val(:, 4), G);
From my data, I should be getting 6 plots within the figure. But I am getting only a single plot. So what is the issue in my code?
Also how to write legend using splitapply?
Thanks.
0 件のコメント
採用された回答
Star Strider
2020 年 3 月 23 日
One approach:
D = load('val.mat');
val = D.val;
G = findgroups(val(:, 3));
figure
hold on
Y = splitapply(@(x){plot(x(:,[1 4]))}, val, G);
hold off
Another approach:
D = load('val.mat');
val = D.val;
G = findgroups(val(:, 3));
Y = splitapply(@(x){x(:,[1 4])}, val, G);
figure
hold on
for k = 1:numel(Y)
plot(Y{k})
end
hold off
grid
legend(compose('Group %d', 1:6), 'Location','eastoutside')
I prefer the second approach, however it is possible to use plot with splitapply, as the first approach demonstrates.
8 件のコメント
その他の回答 (0 件)
参考
カテゴリ
Help Center および File Exchange で Legend 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!