How do I create an auto named variable?
显示 更早的评论
Hello all, I am currently trying to crete a data base. How do I create automated variable names? i.e. Every time the program runs (when operator clicks add user), I want the variable name to be 'user_i' where i=usernumber+1 and usernumber is the previous value of i, to then save the variable with its name to the working directory in the form of save(filename,variables,'-append').
code:
%create user profile
usertemplate=[1:3];
usertemplate(1,1)=height;
usertemplate(1,2)=width;
usertemplate(1,3)=area;
if prog>=1
user1=usertemplate;
usernumber=usernumber+1;
save('database', 'user1','usernumber',-append);
else
userforID=usertemplate;
run('Similarity.m');
end
I would like user1 in the above code to be the auto named variable.
Thank you for any help you provide, and for helping me further my knowledge,
Ben
采纳的回答
Image Analyst
2015-2-17
I agree with James - bad idea. Just make it a structure array and save the whole array
% Add a new user
allUsers(usernumber) = usertemplate;
But since you have only one field - the 1-by-3 template vector - you could just make it a 2D matrix
allUsers(end+1,:) = usertemplate;
save('database.mat', 'allUsers');
更多回答（1 个）
James Tursa
2015-2-17
编辑：James Tursa
2015-2-17
2 个投票
Before you do this you should read this link:
Using variable names like this can be very cumbersome in downstream code. If you do decide to go this route, I fully expect another Question posted by you in the future along the lines of "How do I efficiently access all of the variables named user1, user2, etc in my database?"
类别
在 帮助中心 和 File Exchange 中查找有关 Database Toolbox 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 
