MATLAB: How to check whether a condition is being met and move on to next if it dosent

if conditionmultiple conditions

b=1.1; a=[1;5;6] c=a.*b; c=mean(c)

now I want to check if c lies between 6 and 7, if not i want to try b=1.2 and b=1.0 and b=1.3 and b=0.8 and so on decreasing and increasing

Best Answer

Since c is equal to the mean of b*1,b*5 and b*6, hence c = b*(1+5+6)/3 = 4*b. Therefore 6<4*b<7 implies b lies between 1.5 and 1.75 to satisfy your condition. One approach is to no longer decrease b as that won't give you the result. Start with b=1.1, use a do while loop with terminating condition as 6<c<7. in the body of the loop, compute c as you mentioned in the question.

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MATLAB: Finding average between TFunct1,TFunct2,TFunct3

Hi,

how about this:

TFunct=zeros(1700,1); % or whatever
for i = 1 : 17000
TFunct(i,1)=mean([TFunct1(i,1),TFunct2(i,1),TFunct3(i,1)]);
end

or without a loop you can use this:

>> A=[1 2;2 3;3 4;4 5;5 6]
A =
       1     2
       2     3
       3     4
       4     5
       5     6
  >> B=[2 3;3 4;4 5;5 6;6 7]
B =
       2     3
       3     4
       4     5
       5     6
       6     7
  >> C=[3 4;4 5;5 6;6 7;7 8]
C =
       3     4
       4     5
       5     6
       6     7
       7     8
  >> D=[A(:,1)';B(:,1)';C(:,1)']
D =
       1     2     3     4     5
       2     3     4     5     6
       3     4     5     6     7
>> mean(D)
ans =
       2     3     4     5     6

MATLAB: Problem to write a condition for ‘if’

Try the following code:

A = {[1,2,3,4], [1,2,3,6], [1,2,3,8], [1,2,6,7,8], [1,6,8], [2,3,4,7], [3,4,6], [3,4,6,7], [3,4,6,7,8], [3,6,8], [6,7,8], [1,5]};
B =[1 2; 1 4; 1 8; 1 5; 1 6; 2 7; 2 3; 3 6; 3 8; 3 4; 4 7; 4 6; 7 6; 7 8; 6 8];
B_bk = B;
A_new = cell([],1);
length_B = cell([],1);
%% sort A
[~,I] = sort(cellfun(@length,A));
A = A(I);
C = [];
    for i=1:length(A)
        temp = [A{i} A{i}(1)];
        C = [C;[temp(1:end-1)' temp(2:end)']];
        
        [~,X] = setdiff(sort(B_bk,2),sort(C,2),'rows','stable');
        B = B_bk(X,:);
        length_B{i} = length(B);
        if i==1
            A_new{i} = A{i};
        end
        %% problem to write condition
        if i>1
            if length_B{i-1}- length_B{i}>0 %%???
                A_new{i} = A{i};
            end
        end
    end 
A_new=A_new(~cellfun(@isempty,A_new))

Best Answer

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MATLAB: Finding average between TFunct1,TFunct2,TFunct3

MATLAB: Problem to write a condition for ‘if’

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