How to store multiple variables on Matlab?

Question

Rosemary Gardner 2021-12-9

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评论： Rosemary Gardner 2021-12-10

wpp = []; % weight of cataylst change

yapp = []; % mole fraction of species A change

ycpp = []; % mole fraction of species C change

temppp = []; % temperature change

ppp = []; % pressure change

temppp{end+1} = tempp';

wpp{end+1} = wp';

yapp{end+1} = yap';

ycpp{end+1} = ycp';

ppp{end+1} = pp';

clearvars

Sorry can't show the entire code. There is a for loop in between. What is an alternative code of storing the above variables? We want to use a different method. Preferably more efficient but if it is less, it doesnt matter.

Please message here for the enttire code and I will send you through message.

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Rik 2021-12-9

The best way to keep your variables is to not use clearvars.

What exactly is it you want to do?

Rosemary Gardner 2021-12-9

It's used to exclude temppp ppp ycpp yapp wpp % Stops the variables being cleared each run

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Answer 1

David Hill 2021-12-9

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https://ww2.mathworks.cn/matlabcentral/answers/1607480-how-to-store-multiple-variables-on-matlab#answer_851790

在 MATLAB Online 中打开

If every line is related and numbers of the same kind (floating point), then storing in a matrix can be more efficient (use indexing).

for k=1:100
  m(k,:)=[wpp,yapp,ycpp,temppp,ppp];
end

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Rosemary Gardner 2021-12-10

we tried to put it at the beginning of our code but it says that those variable [wpp,yapp,ycpp,temppp,ppp] are not defined. Is there another way we can store our variables in matrix.

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