fitted line in a scatter plot within a subplot
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Hi,
I would like to put a fitted line in a scatter plot, that I include in a figure with multiple plots. I am attaching the figure I produce, and I circle the subplot that I am referring to. Below you can find the code for my plotting.
figure
subplot(3,2,1) % first subplot
plot(thetaplot)
title('Human Capital Share')
xlabel('Time')
ylabel('Theta')
subplot(3,2,2) % first subplot
plot(khplot)
title('K/H ratio')
xlabel('Time')
ylabel('K/H')
subplot(3,2,3) % first subplot
plot(phiplot)
title('Sector II Share')
xlabel('Time')
ylabel('Phi')
subplot(3,2,4) % first subplot
plot(zhplot)
title('Z/H ratio')
xlabel('Time')
ylabel('Z/H')
subplot(3,2,5) % first subplot
plot(uplot)
title('MPC')
xlabel('Time')
ylabel(' Consumption per Wealth ')
subplot(3,2,6) % first subplot
plot(kh(500:T), kh(501:T+1), 'k.')
title('Policy Function for K/H')
xlabel('K_t')
ylabel('K_{t+1}')
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Cindy Solomon
2015-4-21
编辑:Cindy Solomon
2015-4-21
To add a fitted line to a specific subplot, you can just use the "Basic Fitting Tool" in MATLAB. This can be accessed by going to the "Basic Fitting" option in the "Tools" menu on your figure. Equivalently, you can also plot the line directly on your specific subplot programmatically. For example, if your data was x and y:
p = polyfit(x,y,1)
% polyfit(x,y,n) finds the coefficients of a polynomial p(x) of degree n
% that fits the data. This example demonstrates linear trend.
yLin = polyval(p,x);
% polyval(p,x) returns the value of a polynomial of degree n evaluated at
% x.
subplot(3,2,6)
plot(x,y)
hold on
plot(x,yLin,'r');
Hope this helps!
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