How to generate series by percentage difference using loop?

Question

Triveni 2022-6-22

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1745440-how-to-generate-series-by-percentage-difference-using-loop

评论： Triveni 2022-6-24

采纳的回答： KSSV

I have a value

A(1) = 60;

A(2) = A(1) *0.99;

A(3) = A(2) *0.99;

A(4) = A(3) *0.99;

A(5) = A(4) *0.99;

A(6) = A(5) *0.98; % Values changing after 5 iteration

.

A(11) = A(10) *0.97; % Values changing after 5 iteration

.

.till the differences reached to 0.01.

Please help me.

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Answer 1

KSSV 2022-6-22

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链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1745440-how-to-generate-series-by-percentage-difference-using-loop#answer_990645

编辑：KSSV 2022-6-22

在 MATLAB Online 中打开

A = zeros([],1) ; 
A(1) = 60 ;
dA = 1 ;
i = 1 ; 
while dA > 0.01
    i = i+1 ; 
    A(i) = A(i-1)*0.99 ; 
    dA = abs(A(i)-A(i-1)) ;    
end

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Triveni 2022-6-23

Value of .99 is not changing after 5th iteration. Means A(6) = A(5) *0.98; please correct.

Triveni 2022-6-24

在 MATLAB Online 中打开

%----------------------------------------
PP = 28;
sdf = 0.995;
%----------------------------------------
%Generate Series
A = zeros([],1) ; 
A(1) = PP;
dA = 1 ;
i = 1 ; 
while dA > 0.0001
    i = i+1 ; 
        if length(A)>4 && rem(length(A),5)==0
        sdf = sdf-.01;
        
    A(i) = A(i-1)*sdf ; 
        else
            A(i) = A(i-1)*sdf ; 
        end
    dA = abs(A(i)-A(i-1)) ;    
end
 A = round(unique(A'),2);
 A = A(fliplr(1:end),:);
 N = 0.05; % Round value
 B = unique(nonzeros(round(A/N)*N));
 A = B(fliplr(1:end),:);