How to properly plot data points

Question

Dakota Burrow 2013-7-7

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/81309-how-to-properly-plot-data-points

Hi, I need to know the proper way I should plot my data such that I do not have to plot within the for loop, and so that the points will connect with a line.

clc
clear
SO = 8; 
vm = 0.7; 
ks = 2.5; 
F =@(sm,t) SO-vm*t+ks*log(SO/sm)-sm; 
sl = 0;
su = 9;
n = 6; 
es = 0.5*10^(2-n); 
for t = linspace(0,40,50)
   sm = michaelis_menten(sl,su,es,t,F); 
   hold on; 
    plot(t,sm,'-'); 
    hold off; 
end
xlabel('Time(day)'); 
ylabel('Subtrate Concentration (moles/L)'); 
title('Substrate Concentration vs Time');

the function michaelis_menten is

function sm = michaelis_menten(sl,su,es,t,F)
ea = 1; 
so = 1*10^8; 
while ea > es
      sm = (sl+su)/2; 
      if F(sl,t)*F(sm,t)< 0
          su =sm;
      elseif F(sl,t)*F(sm,t)>0
          sl = sm;
      else
         so = sm;
      end
      ea = 100*abs((sm - so)/sm); 
      so = sm; 
end 
end

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Answer 1

the cyclist 2013-7-7

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/81309-how-to-properly-plot-data-points#answer_91031

在 MATLAB Online 中打开

Here's one way:

numberTimes = 50;
t = linspace(0,40,numberTimes);
figure
for nt = 1:numberTimes
   sm(nt) = michaelis_menten(sl,su,es,t(nt),F); 
end
plot(t,sm,'-'); 
xlabel('Time(day)'); 
ylabel('Subtrate Concentration (moles/L)'); 
title('Substrate Concentration vs Time');