matlab中set函数怎么用,具体的,中文的,高分

我主要是想知道有哪些属性,分别表示什么
2025-03-02 11:20:54
推荐回答(3个)
回答(1):

1、MATLAB给每种对象的每一个属性规定了一个名字,称为属性名,而属性名的取值成为属性值。例如,LineStyle是曲线对象的一个属性名,它的值决定着线型,取值可以是'-' 、':'、'-.'、'--'或'none'。

2、属性的操作set函数的调用格式为:set(句柄,属性名1,属性值1,属性名2,属性值2,…)

help set

ET(H,'PropertyName',PropertyValue)

H为句柄名字,PropertyName 属性名字,PropertyValue 属性值

据此,set(Swarmscope,'EraseMode','xor','MarkerSize',12);

Swarmscope为句柄名,'EraseMode'为句柄图像的擦拭方式,为xor,逻辑符号——或者,MarkerSize为句柄尺寸,大小为12。

扩展资料

set s;
......

set::reverse_iterator rit;

for(rit=s.rbegin();rit!=s.rend();rit++)

元素删除:与插入一样,可以高效的删除,并自动调整使红黑树平衡。

set s;

s.erase(2);        //删除键值为2的元素

s.clear();

元素检索:find(),若找到,返回该键值迭代器的位置,否则,返回最后一个元素后面一个位置

set s;

set::iterator it;

it=s.find(5);    //查找键值为5的元素

if(it!=s.end())    //找到

cout<<*it<

else            //未找到

cout<<"未找到";

参考资料来源:百度百科-SetLayout函数

回答(2):

MATLAB给每种对象的每个属性规定了一个名字,称为属性名,属性名的取值成为属性值。例如,LineStyle是曲线对象的一个属性名,它的值决定着线型,取值可以是'-' 、':'、'-.'、'--'或'none'。

set(gca,,,)函数的作用是在做的图上插入坐标轴的坐标标注。

set函数的调用格式为:set(句柄,属性名1,属性值1,属性名2,属性值2,…)

用法举例:

设置:T0=8; T1=5;

set函数的调用格式为:

set(gca,'Xtick',[-T0,-T1/2,T1/2,T0]);

set(gca,'XTickLabel',{'-T0','-T1/2','T1/2','T0'});

其中Xtick表示的是x轴上选取的坐标位置

相应的XTickLabel表示相应的坐标位置所标注的坐标名称

绘制一葛方波,并对图形进行了标注得到下图:

对Y轴进行标注:

set(gca,'Ytick',[0,0.2,0.4,0.6,0.8,1]);

set(gca,'YTickLabel',{'a','b','c','d','e','f'});

即在0,0.2,0.4,0.6,0.8,1这几个点上分别标注上a,b,c,d,e,f

得到下图:

扩展资料

set函数的其他例子

x=0:0.2:12;

y1=bessel(1,x);

y2=bessel(2,x);

y3=bessel(3,x);

h=plot(x,y1,x,y2,x,y3);

set(h,{'LineWidth'},{2;5;8}) %set(h,{'LineWidth'},

{2})==set(h,'LineWidth',2),将所有线宽设置为2

set(h,{'Color'},{'r';'g';'b'},{'LineStyle'},{'--';':';'-.'}) %设置颜色和线宽

axis([0 12 -0.5 1]) %设置坐标轴范围

grid on

X=0:1:12;

Y=-0.5:0.25:1;

set(gca,'xtick',X,'ytick',Y) %设置网格的显示格式,gca获取当前figure的句柄

set(xlabel('Time'),'FontSize',12,'Color','r')

y=ylabel('Amplitude');

set(y,'FontSize',12,'Color','g')

legend(h,'First','Second','Third') %添加图例

title('Bessel Functions') %添加标题

[y,ix]=min(y1); %找到y1的最小值以及改值的下标,赋给y和ix

text(x(ix),y,'First Min \rightarrow','HorizontalAlignment','right') %插入文本

参考资料:百度百科-MATLAB

回答(3):

1.MATLAB给每种对象的每一个属性规定了一个名字,称为属性名,而属性名的取值成为属性值。例如,LineStyle是曲线对象的一个属性名,它的值决定着线型,取值可以是'-' 、':'、'-.'、'--'或'none'。
2.属性的操作
set函数的调用格式为:
set(句柄,属性名1,属性值1,属性名2,属性值2,…)

例子:

clear
x=0:0.2:12;
y1=bessel(1,x);
y2=bessel(2,x);
y3=bessel(3,x);
h=plot(x,y1,x,y2,x,y3);
set(h,{'LineWidth'},{2;5;8}) %set(h,{'LineWidth'},{2})==set(h,'LineWidth',2),将所有线宽设置为2
set(h,{'Color'},{'r';'g';'b'},{'LineStyle'},{'--';':';'-.'}) %设置颜色和线宽
axis([0 12 -0.5 1]) %设置坐标轴范围
grid on
X=0:1:12;
Y=-0.5:0.25:1;
set(gca,'xtick',X,'ytick',Y) %设置网格的显示格式,gca获取当前figure的句柄
set(xlabel('Time'),'FontSize',12,'Color','r')
y=ylabel('Amplitude');
set(y,'FontSize',12,'Color','g')
legend(h,'First','Second','Third') %添加图例
title('Bessel Functions') %添加标题
[y,ix]=min(y1); %找到y1的最小值以及改值的下标,赋给y和ix
text(x(ix),y,'First Min \rightarrow','HorizontalAlignment','right') %插入文本

具体可改哪些属性值见贴
http://blog.ednchina.com/xth543/218124/Message.aspx

gcf返回当前Figure对象的句柄值
gca返回当前axes对象的句柄值
gco返回当前鼠标单击的句柄值,该对象可以是除root对象外的任意图形对象,并且Matlab会把当前图形对象的句柄值存放在Figure的CurrentObject属性中

Figure对象的属性篇

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