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ÁõÐÐ˼: ½ð±Ò+1, ¡ïÓаïÖú, лл 2012-07-15 13:44:11
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2Â¥2012-07-15 09:25:09
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libralibra

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matlabµÄ²âÊÔ´úÂëÈçÏÂ,ÄãÖ»ÐèÒª½«test»»³ÉÄãµÄ½á¹ûÊý¾Ý¼´¿É
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CODE:
% Éú³ÉȫΪ1µÄÊý¾Ý, 50*50
test = ones(50,50);

% Éú³É-1µÄϱê,Ô­¾ØÕóÔªËØµÄ1/3
rand_minus_one = randi(numel(test),1,ceil(numel(test)/3));

% Éú³É²âÊÔÊý¾Ý,¡À1¶¼ÓÐ
test(rand_minus_one) = -1;

% ²âÊÔÊý¾Ý¾ØÕó´óС
[m,n] = size(test);

% µÃµ½+1µÄϱê
[row1,col1] = ind2sub([m,n],find(test==1));

% µÃµ½-1µÄϱê
[row2,col2] = ind2sub([m,n],find(test==-1));

% Ò»´Î×÷É¢µãͼ
% figure, plot(col1,row1,'rs',col2,row2,'bo');

% holdסºó·Ö2´Î×öÉ¢µãͼ
figure,hold on;
scatter(col1,row1,'filled'); scatter(col2,row2);

Ч¹ûͼ:
matlab/VB/python/c++/Javaд³ÌÐòÇë·¢QQÓʼþ:790404545@qq.com
3Â¥2012-07-15 18:38:03
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