画图基本指令

一、散点图

1.最基础的散点图

x = 0.01:0.01:0.08;
y = [3.0743,3.0707,3.0716,3.1133,3.1685,3.1778,3.2467,3.2634];  
scatter(x, y);

2.函数专用散点图

x = linspace(-2, 2, 100);
y = x .^ 3;  
scatter(x, y);

3.设置圆圈大小的散点图

x = linspace(-2, 2, 100);
y = x .^ 2;  
sz = linspace(1, 100, 100);
scatter(x, y, sz);

二、折线图

1.一条线

x = 3:2:11;
y=[4,5,9,6,4];  
plot(x, y);

2.多条线

x = 3:2:11;
y=[4,5,9,6,4;5,8,2,4,3];  
plot(x, y);

三、柱状图（三种）

1.最基础的柱形图

x = 3:2:11;
y=[4,5,9,6,4];  
bar(x, y);

2.多变量柱形图

x=3:5;
y=[4,5,9,6,4;5,7,9,8,7;1,3,5,9,7];  
bar(x,y);

3.三维的柱形图

只需要把bar换成bar3即可。

x=3:5;
y=[4,5,9,6,4;5,7,9,8,7;1,3,5,9,7];  
bar3(x,y);

4.堆叠形柱形图

y=[4,5,9,6,4;5,7,9,8,7;1,3,5,9,7];
bar(y,'stacked');

5.水平柱形图

只需要把bar改成barh即可：

y=[4,5,9,6,4;5,7,9,8,7;1,3,5,9,7];
barh(y);

四、火柴棍图（挺好看的）

clc;clear;
x =linspace(0,2*pi,60);
y = sin(x);
stem(x,y);

clc;clear;
x =linspace(0,2*pi,60);
y1 = sin(x);
y2 = cos(x);
stem(x,y1);
hold on
stem(x,y2);

五、饼状图

1.基本饼状图

y=[4,5,9,6,4];  
pie(y);

2.三维饼状图

把pie该为pie3即可

y=[4,5,9,6,4];  
pie3(y);

3.突出某一扇形的饼状图

X=[2,2,1,5,2];
explode = [0 1 0 0 0];
pie(X,explode);

六、面积图

x=3:8;
y=[45,6,8;7,4,7;6,25,4;7,5,8;9,9,4;2,6,8]; 
area(x,y);

七、雷达图

在另一篇博客上有详解，如下：
Matalb画雷达图（四行代码）

八、双坐标图

分别控制左右坐标就可以了，不要太简单。而且可以很多种图形任意搭配。

 x= 1:3;y= [9.0725,9.075,9.5175];w= [229,230,207];yyaxis left%控制左纵轴bar(x,y);yyaxis right%控制右纵轴plot(x,w);

九、图像分割函数subplot

subplot函数：
使用方法：subplot（m,n,p）或者subplot（m n p）。
subplot是将多个图画到一个平面上的工具。其中，m表示是图排成m行，n表示图排成n列。顺序是先从左到右，再从上到下。p即表示第几个图。

subplot(1,2,1);
y = [3.4308,3.2773,3.1345,3.0526,3.7684,8.1929,15.7455,18.9201]; 
pie(y);
subplot(1,2,2);
y1=[3.0743,3.0707,3.0716,3.1133,3.1685,3.1778,3.2467,3.2634];
pie(y1);

再画一个，便于理解：

subplot(2,2,1);
y = [5,9,3,4,7,8,11,6]; 
plot(y);
subplot(2,2,2);
x=3:8;
y=[45,6,8;7,4,7;6,25,4;7,5,8;9,9,4;2,6,8]; 
area(x,y);
subplot(2,2,3);
x =linspace(0,2*pi,60);
y1 = sin(x);
y2 = cos(x);
stem(x,y1);
hold on
stem(x,y2);
subplot(2,2,4);
y=[4,5,9,6,4;5,7,9,8,7;1,3,5,9,7];
barh(y);

十、罗盘图

clc;clear;
x=-pi:pi/10:pi;
y=sin(x)+cos(x);
compass(x,y,'G')

十一、瀑布图

MyWaterFall([6 -3 4 -5 8],["A" "B" "C" "D" "E"]);

以下是函数：别忘记换文件名了。

function hfig = MyWaterFall(data, Xlabel)
len = length(data);
hfig = figure;
axes1 = axes('Parent',hfig);
hold on;
width = 40;
xbegin = 10;
ybegin = 0;
set(axes1, 'XTick', xbegin+width/2:width*1.5:xbegin+width/2+(len+1)*1.5*width,...'XTickLabel', [Xlabel "总计"]);
for i = 1:lenif data(i) >= 0 text(xbegin+width/2+(i-1)*1.5*width, sum(data(1:i)), num2str(data(i), '%g'),...'HorizontalAlignment','center','VerticalAlignment','bottom');elsetext(xbegin+width/2+(i-1)*1.5*width, sum(data(1:i)), num2str(data(i), '%g'),...'HorizontalAlignment','center','VerticalAlignment','top');end
end
if sum(data) >= 0text(xbegin+width/2+(len)*1.5*width, sum(data), num2str(sum(data), '%g'),...'HorizontalAlignment','center','VerticalAlignment','bottom');
elsetext(xbegin+width/2+(len)*1.5*width, sum(data), num2str(sum(data), '%g'),...'HorizontalAlignment','center','VerticalAlignment','top');
end
for i = 1:lenif data(i) >= 0rectangle('Position',[xbegin, ybegin, width, data(i)],'facecolor',[0.8500 0.3250 0.0980],...'LineWidth',0.5);elserectangle('Position',[xbegin, ybegin+data(i), width, -data(i)],'facecolor',[0 0.4470 0.7410],...'LineWidth',0.5);endplot([xbegin+width xbegin+1.5*width],[ybegin+data(i) ybegin+data(i)],'k-');xbegin = xbegin + width * 1.5;ybegin = ybegin +data(i);
end
if sum(data) >= 0rectangle('Position',[xbegin, 0, width, ybegin],'facecolor',[0.8500 0.3250 0.0980],...'LineWidth',0.5);
elserectangle('Position',[xbegin, ybegin, width, -ybegin],'facecolor',[0.8500 0.3250 0.0980],...'LineWidth',0.5);
end
end

十二、总结

目前就写这么多吧，还有哪些好图，评论留言告诉博主呀，以后会不断的更新，尽量总结出所有的图。创作不易，记得点赞关注哦。