Re^2: constructing a tree from csv file

oiskuu if I run your code on this data:-

__DATA__
M7,    Q,    P,
M7,    M28,    E,
M28,    M6,    E,
M6,    Q,    Pl,
[download]

I get this

M7<-M28<-M6<-Q = Pl.E.E               
M6<-Q = Pl                            
M28<-M6<-Q = Pl.E
[download]

Whereas I expect

M7<-Q = P
M28<-M6<-Q = Pl.E
M6<-Q = Pl
[download]

That is I expect only the shortest path from child to parent if it is there.

Comment on Re^2: constructing a tree from csv file Select or Download Code

Replies are listed 'Best First'.
Re^3: constructing a tree from csv file by oiskuu (Hermit) on Nov 21, 2013 at 14:23 UTC
It appears your problem has substantially altered. Please post a new question with all specifics. Are the relations fixed to those three? Do they have a cost metric? If multiple shortest paths exist?	[reply]
Re^4: constructing a tree from csv file by zing (Beadle) on Nov 22, 2013 at 05:21 UTC
Created a seperate node as per request : `http://www.perlmonks.org/?node_id=1063871` Please help	[reply] [d/l]