在Matlab中使用For循環繪圖

Question

我製作了一個代碼，它使用for循環來確定ti和t的值。當我繪製變量時，我將所有點都作爲散點圖，我想繪製一條線性最好的線作爲數據。但是，數據正在繪製，因爲每個點都是他們自己的數據集。有沒有辦法來收集數據到一個矩陣來繪製線性圖

clc 

清除所有 關閉所有

%Heat Transfer 

% I is the current passing through the conductor 
I=475; 

% h is the coeffcient of convective heat [W/ m^2*K] transfer 
h=10; 

% D is the diameter of the conductor [m] 
D=0.02364; 


% o is the stefan-boltzman constant [W/m^2*K^4] 
o= 5.67*(10^-8); 

% e is the emissivity coeffcient of the conductor 
e= 0.2; 

% u is the absorbivity coeffcient of the conductor 
u= 0.5; 

% G is the solar irradiance 
G= 1200; 

% r is the resistivity of the conductor per metre 
r= 0.0000864; 

%Qs is the Solar irradiation into the conductor 
%Qs=u*D*G; 

%Qg is the columbic losses generated internally 
%Qg=i^2*r; 

% Qc is the convective energy flowing out of the conductor 
%Qc=h*pi*D*(t-ti); 

% Qr is the radiative energy out of the conductor 
% Qr=o*e*D*(t^4 - ti^4); 
% ti is the ambient temperature [K] 
% t is the temperature of the conductor [K] 

for ti= 213:1:313 
a= @(t) (h*pi*D*(t-ti))+(o*e*D*pi*(t^4 - ti^4))-((u*D*G)+(I^2*r)); 
t= fzero(a,0); 
%fprintf('The temperature of the conductor is: %.2f K when the outside temperature is %g K \n',t,ti) 
hold on 
end 


%I want to plot (ti,t) 

Answer 1

在收集數據輸出的for循環到一個單一的陣列，然後調用用那個陰謀一次。下面來代替你的插入for循環：

timevect = 213:313; 
yvect(1, length(timevect)) = 0; 
for ii = 1:length(timevect) 
    ti = timevect(ii); 
    a= @(t) (h*pi*D*(t-ti))+(o*e*D*pi*(t^4 - ti^4))-((u*D*G)+(I^2*r)); 
    t = fzero(a,0); 
yvect(ii) = t; 
end 
plot(timevect, yvect) 

需要注意的是，現在在你的情節軸上的時間數據是在矢量和YDATA了。你正在爲循環繪製標量。