%% 简单曲线
x = -2*pi:pi/100:2*pi;
fx = sin(x);
figure('Color','w');
%设置figure颜色为白（去掉四周灰色部分）
subplot(1,2,1);
hold on
plot(x,fx);
plot(2*x pi/2,0.5*fx 0.1*x);
hold off
title('plot');
subplot(1,2,2);
hold on
plot_shaded(x,fx);
plot_shaded(2*x pi/2,0.5*fx 0.1*x);
hold off
title('plot_shaded');
代码语言：javascript复制
%% 直方图
X1 = 3 2.0*randn([100000,1]);
X2 = 12 4.0*randn([100000,1]);
figure('Color','w');
hold on
plot_histogram_shaded(X1,'Alpha',0.3);
%参数Alpha为透明度
plot_histogram_shaded(X2);
hold off
title('plot_histogram_shaded');
代码语言：javascript复制
%% 分布图
X = 1:0.25:10;
Y = sin(X) 0.25*X;
Y_error = randn(1000,numel(Y));
Y_noisy = Y Y_error.*repmat(0.1*X,[size(Y_error,1) 1]);
figure('Color','w');
subplot(3,1,1);
plot(X,Y,'LineWidth',1.5);
title('plot (True value y=f(x))');
ylim([-1 5]);
subplot(3,1,2);
hold on
plot(X,Y,'LineWidth',1.5);
plot_distribution(X,Y_noisy);
hold off
title('plot_distribution');
ylim([-1 5]);
subplot(3,1,3);
hold on
plot(X,Y,'LineWidth',1.5);
%参数LineWidth为线宽
plot_distribution_prctile(X,Y_noisy,'Prctile',[25 50 75 90]);
%参数Prctile为要绘制的百分位值
hold off
title('plot_distribution_prctile');
ylim([-1 5]);
