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kerven

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2Â¥2013-06-22 09:56:16
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kerven

ר¼Ò¹ËÎÊ (ÖøÃûдÊÖ)

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3Â¥2013-06-22 10:37:12
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Nkxz

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kerven: ½ð±Ò+2, ¡ï¡ï¡ïºÜÓаïÖú, лл£¬ÎÒ¶ÔmatlabºÜ²»ÊìϤ£¬Âé·³ÄãÄܰïÎÒÍêÕû°æµÄmatlab³ÌÐòÂ𣿠2013-06-24 23:04:03
x = diff(x0)
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4Â¥2013-06-24 13:47:59
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Nkxz

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¡ï ¡ï ¡ï
kerven: ½ð±Ò+3, ¡ï¡ï¡ïºÜÓаïÖú, ллÄã 2013-06-25 09:50:52
Ê×ÏȰÑÄãµÄÊý¾Ýµ¼Èëµ½matlab£¬ÏÈŪµ½excel¸ñʽ£¬È»ºó¸´ÖƵ½matlab»òÕßͨ¹ýÆäËü·½·¨£¬ÒòΪ±È½Ï»ù´¡£¬¿ÉÒÔ×Ô¼ºÍøÉÏËÑÏÂÏà¹ØµÄÊý¾Ýµ¼Èë·½·¨×ÊÁÏ£»È»ºó°ÑÄãµÄÊý¾Ý´æÎªx0£¬ÔÙͨ¹ýÉÏÃæµÄdiffÃüÁî¾Í¿ÉÒÔʵÏÖÏàÁÚÁ½¸öÊýµÄ²îÁË¡£
5Â¥2013-06-25 07:41:33
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cjjdemon

ľ³æ (ÕýʽдÊÖ)

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¡ï ¡ï
kerven: ½ð±Ò+1, ¡ï¡ï¡ïºÜÓаïÖú, лл£¬¹Ø¼üÊÇÎÒÐèÒªÕÒµ½µÄÊÇÁ¬ÐøµÄ¼«Öµµã£¬²»ÖªµÀÈçºÎ½â¾ö£¿ 2013-07-10 11:17:41
jjdg: ½ð±Ò+1, ¸Ðл²ÎÓë 2013-07-11 04:14:22
Á¬ÐøÊý¾Ý£¬¿ÉÒÔÓÃÇ󵼵ķ½Ê½À´ÕÒµ½¼«µã¡£ÔÚexcelÀdelta(y)/delta(x)£¬È»ºóÈ¡Á¬ÐøÁ½¸öбÂÊ×îСµã£¬»òÈ¡×î½Ó½üµÄÁ½¸öбÂʱäºÅµã¡£
Сʱºò£¬ÎÒ×ÜÒÔΪ×Ô¼º¿ÉÒÔÕü¾ÈÕû¸öÊÀ½ç£»µ«Êdz¤´óÒÔºó£¬ÎÒͻȻ·¢ÏÖÕû¸öÊÀ½ç¶¼Õü¾È²»ÁËÎÒ¡£¡£¡£
6Â¥2013-07-10 08:18:54
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libralibra

ÖÁ×ðľ³æ (ÖøÃûдÊÖ)

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¡ï ¡ï
jjdg: ½ð±Ò+2, ÐÁ¿àÁË 2013-07-11 04:14:08
Êý¾Ý±£´æÎªÏòÁ¿a(ÎÒËæ»úÁË10¸ö0-100µÄÊý´úÌæ)
È»ºóÓÃÏÂÃæµÄ´úÂë¼´¿É
CODE:
% Êý¾Ý
a = randi(100,[1,10]);
% ¼«´óÖµµã
maxa = find(diff(sign(diff(a)))==-2)+1;
% ¼«Ð¡Öµµã
mina = find(diff(sign(diff(a)))==2)+1;
% ¼«´ó¼«Ð¡ÖµindexÅÅÐò
alla = sort([maxa,mina]);
% ÇóÏàÁÚ¼«Öµµã²î
difa = diff(a(alla));
% Ô­Êý¾Ý
figure,plot(a);hold on;
% ¼«´óÖµ
plot(maxa,a(maxa),'b*');
% ¼«Ð¡Öµ
plot(mina,a(mina),'ro');
% ½á¹û
xlabel({strcat('¼«´óÖµ(*)×ø±ê:',num2str(maxa)),
        strcat('¼«Ð¡Öµ(o)×ø±ê:',num2str(mina)),
        strcat('¼«ÖµµãÖ®²î: ',num2str(difa))});

½á¹û:
Á¬ÐøÊý¾ÝÈçºÎÇóÏàÁÚÁ½¼«Öµµã²î
matlab/VB/python/c++/Javaд³ÌÐòÇë·¢QQÓʼþ:790404545@qq.com
7Â¥2013-07-10 20:23:45
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
8Â¥2013-07-13 14:21:24
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
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