nature 发表于 2005-12-3 12:13

蠓虫问题求助解答

<P>两种蠓虫Af和Apf已由生物学家W.L.Grogan与w. w. Wirth(1981)根据它们触角长度和翼长中以区分。见表2.1中9Af蠓和6只Apf蠓的数据。根据给出的触角长度和翼长可识别出一只标本是Af还是Apf。</P>
<P>1．给定一只Af或者Apf族的蒙，你如何正确地区分它属于哪一族？</P>
<P>2．将你的方法用于触角长和翼中分别为（1.24,1.80）、（1.28,1.84）、(1.40,2.04)的三个标本</P>
<Palign=center>表2.1</P>
<DIV align=center>
<TABLEcellSpacing=0 cellPadding=0 border=1>

<TR >
<TDwidth=28 rowSpan=2>
<Palign=center>Af</P></TD>
<TDwidth=65>
<Palign=center>触重长</P></TD>
<TDwidth=50>
<Palign=center>1.24</P></TD>
<TDwidth=50>
<Palign=center>1.36</P></TD>
<TDwidth=50>
<Palign=center>1.38</P></TD>
<TDwidth=50>
<Palign=center>1.378</P></TD>
<TDwidth=50>
<Palign=center>1.38</P></TD>
<TDwidth=50>
<Palign=center>1.40</P></TD>
<TDwidth=50>
<Palign=center>1.48</P></TD>
<TDwidth=50>
<Palign=center>1.54</P></TD>
<TDwidth=46>
<Palign=center>1.56</P></TD></TR>
<TR >
<TDwidth=65>
<Palign=center>翼长</P></TD>
<TDwidth=50>
<Palign=center>1.72</P></TD>
<TDwidth=50>
<Palign=center>1.74</P></TD>
<TDwidth=50>
<Palign=center>1.64</P></TD>
<TDwidth=50>
<Palign=center>1.82</P></TD>
<TDwidth=50>
<Palign=center>1.90</P></TD>
<TDwidth=50>
<Palign=center>1.70</P></TD>
<TDwidth=50>
<Palign=center>1.70</P></TD>
<TDwidth=50>
<Palign=center>1.82</P></TD>
<TDwidth=46>
<Palign=center>2.08</P></TD></TR>
<TR >
<TDwidth=28 rowSpan=2>
<Palign=center>Apf</P></TD>
<TDwidth=65>
<Palign=center>触角长</P></TD>
<TDwidth=50>
<Palign=center>1.14</P></TD>
<TDwidth=50>
<Palign=center>1.18</P></TD>
<TDwidth=50>
<Palign=center>1.20</P></TD>
<TDwidth=50>
<Palign=center>1.26</P></TD>
<TDwidth=50>
<Palign=center>1.28</P></TD>
<TDwidth=50>
<Palign=center>1.30</P></TD>
<TDwidth=146 colSpan=3>
<Palign=center><p> </p></P></TD></TR>
<TR >
<TDwidth=65>
<Palign=center>翼长</P></TD>
<TDwidth=50>
<Palign=center>1.78</P></TD>
<TDwidth=50>
<Palign=center>1.96</P></TD>
<TDwidth=50>
<Palign=center>1.86</P></TD>
<TDwidth=50>
<Palign=center>2.00</P></TD>
<TDwidth=50>
<Palign=center>2.00</P></TD>
<TDwidth=50>
<Palign=center>1.96</P></TD>
<TDwidth=146 colSpan=3>
<Palign=center><p> </p></P></TD></TR></TABLE></DIV>

happy 发表于 2005-12-3 16:34

回复：（nature）蠓虫问题求助解答

用神经网络就可以了<BR><BR>另外好像叶其孝编的数模教程里有分析解答
页: [1]
查看完整版本: 蠓虫问题求助解答