Add a line plot on bar chart

H-H
2013 9 29
1 个回答
回答已采纳
更新时间：2013 9 29
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Hi there, I want to add a Normal distribution function (mean=0.5, sd=0.167) as a line on top of this bar chart. I want to keep the same x-axis and Y-axis. and I don't want to Fit the PDF. This is my bar chart construction in bellow. Can you please comment? Thanks.
X1 = [ 1.994711e-02 5.978008e-02 9.961305e-02 1.394460e-01 1.792790e-01 2.191120e-01 2.589449e-01 2.987779e-01 3.386109e-01 3.784439e-01 4.182768e-01 4.581098e-01 4.979428e-01 5.377757e-01 5.776087e-01 6.174417e-01 6.572747e-01 6.971076e-01 7.369406e-01 7.767736e-01 8.166066e-01 8.564395e-01 8.962725e-01 9.361055e-01 9.759384e-01 ]; N1 = [ 6.910998e-02 6.358135e-02 5.939631e-02 5.477412e-02 5.035550e-02 4.661832e-02 4.306543e-02 3.973325e-02 3.640108e-02 3.456677e-02 3.427749e-02 3.374177e-02 3.321890e-02 3.323176e-02 3.361105e-02 3.347819e-02 3.356605e-02 3.354248e-02 3.344391e-02 3.361105e-02 3.341176e-02 3.348248e-02 3.306890e-02 3.352534e-02 3.318676e-02 ]; y=bar(X1,N1,1.0); xmin = min(X1); xmax = max(X1); xwid = xmax - xmin; xmin = xmin - 0.5 * xwid / 25; xmax = xmax + 0.5 * xwid / 25; ymax = max(N1); axis([xmin xmax 0 ymax]) xlabel('X1','FontWeight','bold','FontSize',12) ylabel('Probabilities','FontWeight','bold','FontSize',12) set(gca,'linewidth',2) set(gca,'fontweight','bold') set(gca,'fontsize',12)

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Image Analyst
Image Analyst 2013-9-29

0 个投票

Try this:
X1 = [
1.994711e-02 5.978008e-02 9.961305e-02 1.394460e-01 1.792790e-01 2.191120e-01 2.589449e-01 2.987779e-01 3.386109e-01 3.784439e-01 4.182768e-01 4.581098e-01 4.979428e-01 5.377757e-01 5.776087e-01 6.174417e-01 6.572747e-01 6.971076e-01 7.369406e-01 7.767736e-01 8.166066e-01 8.564395e-01 8.962725e-01 9.361055e-01 9.759384e-01 ];
N1 = [
6.910998e-02 6.358135e-02 5.939631e-02 5.477412e-02 5.035550e-02 4.661832e-02 4.306543e-02 3.973325e-02 3.640108e-02 3.456677e-02 3.427749e-02 3.374177e-02 3.321890e-02 3.323176e-02 3.361105e-02 3.347819e-02 3.356605e-02 3.354248e-02 3.344391e-02 3.361105e-02 3.341176e-02 3.348248e-02 3.306890e-02 3.352534e-02 3.318676e-02 ];
% Plot N1
subplot(3,1,1);
y=bar(X1,N1,1.0);
xmin = min(X1);
xmax = max(X1);
xwid = xmax - xmin;
xmin = xmin - 0.5 * xwid / 25;
xmax = xmax + 0.5 * xwid / 25;
ymax = max(N1);
axis([xmin xmax 0 ymax])
xlabel('X1','FontWeight','bold','FontSize',12)
ylabel('Probabilities','FontWeight','bold','FontSize',12)
set(gca,'linewidth',2)
set(gca,'fontweight','bold')
set(gca,'fontsize',12)
% Plot Gaussian
subplot(3,1,2);
x = X1; %linspace(0, 1, length(X1));
g = exp(-(x-0.5).^2/(2*0.167^2))
% Make g the same height at the tallest N1
plot(x, g, 'r-', 'LineWidth', 3);
grid on;
% Plot both
subplot(3,1,3);
bar(X1,N1,1.0);
hold on;
% Make g the same height at the tallest N1
g = g * max(N1);
plot(x, g, 'r-', 'LineWidth', 3);
grid on;

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