Re: Adding Columns from Given Data

This gives the final result I think you want:

my @oldlist = map {chomp; $_} <DATA>;

my @sorted = map {$_->[2] . " " . $_->[1]}
             sort {($a->[2] cmp $b->[2]) || ($b->[1] cmp $a->[1])}
             map { [split] } @oldlist;
my @newlist = map {shift(@oldlist) . ' ' . $_} @sorted;

print join "\n", @newlist;
__DATA__
a1 p1 q5
a1 p1 q6
a1 p2 q4
a2 p3 q9
a2 p2 q8
a2 p2 q9
[download]

__OUTPUT__
a1 p1 q5 q4 p2
a1 p1 q6 q5 p1
a1 p2 q4 q6 p1
a2 p3 q9 q8 p2
a2 p2 q8 q9 p3
a2 p2 q9 q9 p2

HTH

Update: Forgot to mention my output is different from yours, I think it was a typo in your sample output, looking at your sample input.

Comment on Re: Adding Columns from Given Data Download Code

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Re: Re: Adding Columns from Given Data by artist (Parson) on Jun 27, 2003 at 15:43 UTC
Thanks tedrek for the excellent code, I slightly modified because I like to 'sort' within account block `my @oldlist = map {chomp; $_} <DATA>; my @sorted = map {$_->[2] . " " . $_->[1]} sort {($a->[0] cmp $b->[0]) \|\| ($a->[2] cmp $b->[2]) \|\| ($b->[1] cmp $a->[1])} map { [split] } @oldlist; #print join "\n", @sorted,"\n"; my @newlist = map {shift(@oldlist) . ' ' . $_} @sorted; print (join ("\t", split),"\n") for @newlist; __DATA__ a1 p1 qX5 a1 p1 q6 a1 p2 q4 a2 p3 q9 a2 p2 q8 a2 p2 q9 _OUTPUT__ a1 p1 qX5 q4 p2 a1 p1 q6 q6 p1 a1 p2 q4 qX5 p1 a2 p3 q9 q8 p2 a2 p2 q8 q9 p3 a2 p2 q9 q9 p2` [download] Notice that 'qX5' remains within the given block of account (a1). artist	[reply] [d/l]

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Re: Re: Adding Columns from Given Data
by artist (Parson) on Jun 27, 2003 at 15:43 UTC

tedrek

my @oldlist = map {chomp; $_} <DATA>;

my @sorted = map {$_->[2] . " " . $_->[1]}
             sort {($a->[0] cmp $b->[0]) || 
                   ($a->[2] cmp $b->[2]) || 
                   ($b->[1] cmp $a->[1])}
             map { [split] } @oldlist;

#print join "\n", @sorted,"\n";

my @newlist = map {shift(@oldlist) . ' ' . $_} @sorted;
print (join ("\t", split),"\n") for @newlist;
__DATA__
a1 p1 qX5
a1 p1 q6
a1 p2 q4
a2 p3 q9
a2 p2 q8
a2 p2 q9

_OUTPUT__
a1    p1    qX5    q4    p2
a1    p1    q6    q6    p1
a1    p2    q4    qX5    p1
a2    p3    q9    q8    p2
a2    p2    q8    q9    p3
a2    p2    q9    q9    p2
[download]

artist

[reply]
[d/l]