How create a cell array

Question

Angela Marino 2020-9-13

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/592954-how-create-a-cell-array

评论： Angela Marino 2020-9-13

How can I have a script that allows me to obtain a cell array (3600,1) of this type?

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Matt J 2020-9-13

It is peculiar that you would want it to be a cell array. A numeric vector would be much more efficient.

Angela Marino 2020-9-13

在 MATLAB Online 中打开

I need a cell array because this column of numbers must be associated with a cell array column where there are words. My code is:

for j=1:length(pers_ML_allSim)
    for k=1:num_cluster_p
if idx_pers(j,1)==k && nome_allSim(j,1)==1
    sumocfg_group(j,1)={'scenario base'};
        sumocfg_group(j,2)={k};
elseif idx_pers(j,1)==k && nome_allSim(j,1)==2
    sumocfg_group(j,1)={'perturbazione veicoli'};
            sumocfg_group(j,2)={k};
            
elseif idx_pers(j,1)==k && nome_allSim(j,1)==3
    sumocfg_group(j,1)={'perturbazione strada'};
            sumocfg_group(j,2)={k};
elseif idx_pers(j,1)==k && nome_allSim(j,1)==4
    sumocfg_group(j,1)={'perturbazione pedoni'};
            sumocfg_group(j,2)={k};
end
    end
end

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Answer 1

Matt J 2020-9-13

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/592954-how-create-a-cell-array#answer_493897

编辑：Matt J 2020-9-13

在 MATLAB Online 中打开

reshape( num2cell((1:24).'*ones(1,150)) ,[],1)

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Angela Marino 2020-9-13

it works perfectly!

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Answer 2

Matt J 2020-9-13

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/592954-how-create-a-cell-array#answer_493918

编辑：Matt J 2020-9-13

在 MATLAB Online 中打开

It might be beter to have a struct,

strArray=["scenario base","perturbazione veicoli","perturbazione strada","perturbazione pedoni"];
[UU,VV]=ndgrid(strArray,1:num_cluster_p);
idx=sub2ind(size(UU),idx_pers(:,1),nome_allSim(:,1));
sumocfg_group.column1=UU(idx);
sumocfg_group.column2=VV(idx);