trapz whe x is a matrix
11 ビュー (過去 30 日間)
古いコメントを表示
I have a Y matrix size 2500x11 were each line corresponds to the 11 vales of curve points for trapezoidal integration.
the x values are not uniform and they vary so i have a second matrix for X size 2500x11.
I' tring to integrate using trapz (X,Y,2) but I get error "X must be a vector.".
How ca one use trapz with a matrix for x values? In octave it works.
0 件のコメント
採用された回答
dpb
2019 年 11 月 19 日
TMW only implemented variable X spacing for the full array, not by column (or row). Have to loop to do it...worthy of an enhancement request for the added functionality it would seem.
N=size(Y,1);
for i=1:N
Q(i)=trapz(X(:,i),Y(:,i));
end
3 件のコメント
dpb
2019 年 11 月 22 日
MATLAB is not Octave! Converse is also true... :)
Feel free to submit the enhancement request...I'd suggest referencing this thread if do so.
その他の回答 (0 件)
参考
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!