Brace indexing is not supported for variables of this type

Mu_s and Mu_d are cell. This if statement is part of a function which is called inside of a main for loop. I got the following error when execute the main script.

Brace indexing is not supported for variables of this type.

if Mu_s{scenario,i,j,k}<1.0 && Mu_d{scenario,i,j,k}<7.0
        DS{scenario,i,j,k}=0; % no damage
    elseif Mu_s{scenario,i,j,k}>1.0 && Mu_s{scenario,i,j,k}<2.0 && Mu_d{scenario,i,j,k}<7.0
        DS{scenario,i,j,k}=1; % minor damage state
    elseif Mu_s{scenario,i,j,k}>2.0 && Mu_s{scenario,i,j,k}<4.0 && Mu_d{scenario,i,j,k}<7.0
        DS{scenario,i,j,k}=2; % moderate damage state
    elseif Mu_s{scenario,i,j,k}>4.0 && Mu_s{scenario,i,j,k}<6.0 && Mu_d{scenario,i,j,k}<7.0
        DS{scenario,i,j,k}=3; % major damage state
    elseif Mu_s{scenario,i,j,k}>6.0 || Mu_d{scenario,i,j,k}>7.0
        DS{scenario,i,j,k}=3; % collapse or complete damage state
end

Answer 1

[Jeremy]

Mu_s{:} < 1.0 && Mu_d{:} < 7.0

[Mos_bad]

I just editted the question. I need a specific data (i.e. Mu_s{scenario,i,j,k}) of cell array to be considered as you may see in the code above.

[Jeremy]

Indexing the cell with curly braces should pull the scalar value and allow you to get a logical result, unless the value contained within the cell is another cell array.