Dear All,
I have to reduce the redundancy of a file that is like this:
Code:
a b 0
a c 0
a f 1
b a 1
b a 0
b c 1
d f 0
g h 1
f d 1
Basically, this file describe a network with relative nodes and edges.
The nodes are the different letters and the edges are represented by the numbers (in particluar 0, means that the direction of edges is from left to right, 1 is viceversa).
As you may notice, some interaction are duplicates (in bold). For example interaction:
Code:
a b 0b a 1
a-->b
b<--a
Are exactly the same. The first line interaction go from a to b (0 means inreaction go from left to right), in second line interaction still go from a to b (1 means interaction go from right to left).
What I would like is to filter the file above and output a file like this:
Code:
a b 0
a c 0
a f 1
b a 0
b c 1
d f 0
g h 1
So, all the duplicated interaction are removed.
!Interactions
Code:
a b 0
b a 0
are not the same! Both go from left to right but is different the starting node.
a-->b
b-->a
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Discussion started by: Abhi04
2 Replies
LEARN ABOUT DEBIAN
gvgen
GC(1) General Commands Manual GC(1)NAME
gvgen - generate graphs
SYNOPSIS
gvgen [ -d? ] [ -cn ] [ -Cx,y ] [ -g[f]x,y ] [ -G[f]x,y ] [ -hn ] [ -kn ] [ -bx,y ] [ -pn ] [ -sn ] [ -Sn ] [ -tn ] [ -Tx,y ] [ -wn ] [
-ooutfile ]
DESCRIPTION
gvgen generates a variety of simple, regularly-structured abstract graphs.
OPTIONS
The following options are supported:
-c n Generate a cycle with n vertices and edges.
-C x,y Generate an x by y cylinder. This will have x*y vertices and 2*x*y - y edges.
-g [f]x,y
Generate an x by y grid. If f is given, the grid is folded, with an edge attaching each pair of opposing corner vertices. This
will have x*y vertices and 2*x*y - y - x edges if unfolded and 2*x*y - y - x + 2 edges if folded.
-G [f]x,y
Generate an x by y partial grid. If f is given, the grid is folded, with an edge attaching each pair of opposing corner vertices.
This will have x*y vertices.
-h n Generate a hypercube of degree n. This will have 2^n vertices and n*2^(n-1) edges.
-k n Generate a complete graph on n vertices with n*(n-1)/2 edges.
-b x,y Generate a complete x by y bipartite graph. This will have x+y vertices and x*y edges.
-p n Generate a path on n vertices. This will have n-1 edges.
-s n Generate a star on n vertices. This will have n-1 edges.
-S n Generate a Sierpinski graph of order n. This will have 3*(3^(n-1) - 1)/2 vertices and 3^n edges.
-t n Generate a binary tree of height n. This will have 2^n-1 vertices and 2^n-2 edges.
-T x,y Generate an x by y torus. This will have x*y vertices and 2*x*y edges.
-w n Generate a path on n vertices. This will have n-1 edges.
-o outfile
If specified, the generated graph is written into the file outfile. Otherwise, the graph is written to standard out.
-d Make the generated graph directed.
-? Print usage information.
EXIT STATUS
gvgen exits with 0 on successful completion, and exits with 1 if given an ill-formed or incorrect flag, or if the specified output file
could not be opened.
AUTHOR
Emden R. Gansner <erg@research.att.com>
SEE ALSO gc(1), acyclic(1), gvpr(1), gvcolor(1), ccomps(1), sccmap(1), tred(1), libgraph(3)
27 March 2008 GC(1)