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zmhaha

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a=[1 inf inf;
    2 inf inf;
    4 inf inf;
    1 inf inf];
¸÷λ´óÏÀ£¬ÈçÉÏÒ»¸ö¾ØÕó ÆäÖаüº¬Èô¸É¸öinf, ÈçºÎɾ³ý¾ØÕóÖÐinfËùÔÚÐжøÉú³ÉÒ»¸öÐµģ¬²»°üº¬infµÄ¾ØÕó¡£ÐèҪɾ³ýinfËùÔÚÐÐËùÓеÄÊý¾Ý£¬²»Êǵ¥µ¥inf×Ô¼º¡£ лл´ó¼Ò£¡
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lurencyj

ľ³æ (ÖøÃûдÊÖ)

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¡ï ¡ï ¡ï ¡ï ¡ï
¸Ðл²ÎÓ룬ӦÖúÖ¸Êý +1
zmhaha: ½ð±Ò+5, ¡ï¡ï¡ïºÜÓаïÖú 2012-04-11 20:20:01
ɾ³ý¾ØÕóÖÐinfËùÔÚÐжøÉú³ÉÒ»¸öÐµģ¬²»°üº¬infµÄ¾ØÕó¡£ÐèҪɾ³ýinfËùÔÚÐÐËùÓеÄÊý¾Ý£¬²»Êǵ¥µ¥inf×Ô¼º:
CODE:
% ²éÕÒº¬ÓÐinfµÄÐкÅ
inf_id = [];
for ni = 1:size(a,1)
    if length(find(a(ni,:) == inf)) ~= 0
        inf_id = [inf_id ni];
    end
end
% ɾ³ý
a(inf_id,:) = [];

ɾ³ýinfºóÈô¹ûÏëÓÃÁã´úÌæÔ­À´infµÄλÖã¬Ê¹¾ØÕóµÄά¶È²»±ä:
CODE:
a(find(a(:,:) == inf)) = 0

[ ·¢×ÔÊÖ»ú°æ http://muchong.com/3g ]
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2Â¥2012-04-10 21:38:22
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lurencyj

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ͻȻÏëµ½¶ÔÓÚµÚÒ»ÖÖÇé¿ö¸ü¼òµ¥µÄ·½°¸£¬´úÂë¸ü¼òµ¥£¬ºÇºÇ£¡
CODE:
a(find(sum(abs(a\')) == inf), :) = [];

abs(a\')ÊÇΪÁË·ÀÖ¹-infºÍinfÏà¼ÓºóµÖÏû¡£

[ ·¢×ÔÊÖ»ú°æ http://muchong.com/3g ]
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3Â¥2012-04-10 21:53:16
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lurencyj

ľ³æ (ÖøÃûдÊÖ)

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aºóÃæµÄÄǸö·´Ð±¸ÜҪȥµô£¬ÊÇСľ³æ°µµØÀï¼ÓµÄ¡£¡£¡£¡£¡£¡£¡£

[ ·¢×ÔÊÖ»ú°æ http://muchong.com/3g ]
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4Â¥2012-04-10 21:55:10
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libralibra

ÖÁ×ðľ³æ (ÖøÃûдÊÖ)

æôÆï½«¾ü

ÓÃÄÚÖú¯Êýisinf
CODE:
>> a = [1 inf inf;
     2 inf 20;
     3 20 30;
     4 10 15];
>> a(~any(isinf(a),2),:)  %ÅжÏÐÐÓÐinfµÄ,ɾ³ýÕûÐÐ,±£ÁôÆäÓà
ans =
     3    20    30
     4    10    15
>> a(isinf(a)) = 0  %½«ËùÓÐinfÌæ»»Îª0
a =
     1     0     0
     2     0    20
     3    20    30
     4    10    15
>>

matlab/VB/python/c++/Javaд³ÌÐòÇë·¢QQÓʼþ:790404545@qq.com
5Â¥2012-04-11 01:18:35
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

lijie169

Í­³æ (ÖøÃûдÊÖ)

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6Â¥2012-04-11 08:38:55
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
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