I need to create the following plots in the same figure window but the green graph is remaining constant when it should be a negative graph

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Allison Sims 2022-7-10

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https://ww2.mathworks.cn/matlabcentral/answers/1756605-i-need-to-create-the-following-plots-in-the-same-figure-window-but-the-green-graph-is-remaining-cons

评论： Karan Singh 2023-9-28

Whenever I run each graph separatly it displays correctly but when I try to have them all on the same plot using the hold on and hold off functions the green graph remains constant when it should be a negative sloping curve. Any suggestions?

%Increase=input('Enter percent of increase :')

%Decrease=input('Enter percent of decrease :')

%Remain_Constant=input('Enter 0 to remain constant :')

Increase=0.15;

Decrease=-0.1;

Remain_Constant=0;

years=[11:1:50];

%Current_value=Total_mismanaged_kg_year;

Current_value=3273763.092;

annual_rate_increase=Increase;

annual_rate_decrease=Decrease;

annual_rate_remain=Remain_Constant;

Future_growth_increase=(1+ annual_rate_increase).^years;

Future_growth_decrease=(1+ annual_rate_decrease).^years;

Future_growth_constant=(1+ annual_rate_remain).^years;

Future_value_increase=Future_growth_increase*Current_value;

Future_value_decrease=Future_growth_decrease*Current_value;

Future_value_remain=Future_growth_constant*Current_value;

%figure;plot(years,Future_value_increase,'b')

%hold on

%plot(years,Future_value_decrease,'g')

%plot(years,Future_value_remain,'r')

%hold off

figure;semilogy(years,Future_value_increase,'b')

hold on

semilogy(years,Future_value_decrease,'g')

semilogy(years,Future_value_remain,'r')

hold off

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Torsten 2022-7-10

编辑：Torsten 2022-7-10

My guess is that the values for the green graph are that low that they cannot be distinguished from the x-axis.

Try a logarithmic plot for the three curves (see above).

Karan Singh 2023-9-28

Hi Allison, from what I see the green graph is a negative slope and while running individually as well as running with hold off and on , and does not make a difference in my machine. Can you explain cause I am not able to see any problem.

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