getting data from structure
显示 更早的评论
Hi!
I have a structure set up like so:
S(1).speed = [x1 y1 z1];
S(2).speed = [x2 y2 z2];
S(3).speed = [x3 y3 z3];
and so on...
for every entry, the speed data is separated into x, y, and z axis in that order.
how can i, for example, get a vector containing only the speed in the x axis of all the entries? (the first object in every entry)
采纳的回答
David Hill
2020-2-14
T=struct2table(S);
out=T.speed(:,1);
更多回答（2 个）
Fangjun Jiang
2020-2-14
编辑：Fangjun Jiang
2020-2-14
temp=[S.speed];
out=temp(1:3:end)
% or get all three speeds
Speed=reshape([S.speed],3,[])
Geoff Hayes
2020-2-14
Lichay - you could try something like
speedX = arrayfun(@(k)S(k).speed(1), 1:length(S))
where we use arrayfun to iterate over each element of S and extract the speed in x.
类别
在 帮助中心 和 File Exchange 中查找有关 Biological and Health Sciences 的更多信息
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!
Translated by 
