📄 som_connection.html
字号:
<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML//EN"><html><head><title>SOM Toolbox / som_connection </title></head><body bgcolor=#f0f0f0><table border=0 width="100%" cellpadding=0 cellspacing=0><tr><td valign=baseline><font size=+2>SOM Toolbox</font></td><td valign=baseline align=center><a href="somtoolbox.html">Online documentation</td><td valign=baseline align=right><a href="http://www.cis.hut.fi/projects/somtoolbox/" target="_top">http://www.cis.hut.fi/projects/somtoolbox/</a></td></tr></table><hr><H1> som_connection </H1><H3> Purpose </H3><PRE> To create a connection matrix of SOM 'hexa' and 'rect' negihborhoods</PRE><H3> Syntax </H3><UL><PRE> C = som_connection(S)</PRE></UL><H3> Description </H3><PRE> Creates a connection matrix of SOM 'hexa' and 'rect' neighborhoods. The connections are defined only in the upper triangular part to save some memory. Function SOM_UNIT_NEIGHS does the same thing, but also has values in the lower triangular. It is also slower, except for 'toroid' shape because in that case this function calls </PRE><H3> Som_unit_neighs... </H3><PRE></PRE><H3> Required input arguments </H3><PRE> S map topology (map struct) S.topol is used to build the matrix (topol struct) topology information is used to build the matrix (cell array) of form {lattice, msize, shape}, where lattice: 'hexa' or 'rect' msize : 1x2 vector shape : 'sheet', 'cyl or 'toroid' </PRE><H3> Output arguments </H3><PRE> C (sparse) munits x munits sparse matrix which describes nearest neighbor connections between units</PRE><H3> Example </H3><PRE> C = som_connection('hexa',[3 4],'sheet'); full(C) ans = 0 1 0 1 0 0 0 0 0 0 0 0 0 0 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 1 0 1 0 0 0 0 0 0 0 0 0 0 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 1 0 1 0 0 0 0 0 0 0 0 0 0 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0</PRE><H3> See also </H3><TABLE NOBORDER WIDTH=80%><TR><TD><a href="som_grid.html"><B>som_grid</B></a><TD> Visualization of a SOM grid<TR><TD><a href="som_unit_neighs.html"><B>som_unit_neighs</B></a><TD> Units in 1-neighborhood for all map units.</TABLE><p><hr><br><br><!-- Last updated: May 30 2002 --></body></html>⌨️ 快捷键说明
复制代码
Ctrl + C
搜索代码
Ctrl + F
全屏模式
F11
切换主题
Ctrl + Shift + D
显示快捷键
?
增大字号
Ctrl + =
减小字号
Ctrl + -