Hi,
On a similar subject, the following. I have two files:
file1.txt
dbSNP_rsID,Chromosome,Position,Gene
rs10399749,chr. 01,45162,?
rs4030303,chr. 01,72434,?
rs4030300,chr. 01,72515,?
rs940550,chr. 01,78032,?
rs13328714,chr. 01,81468,?
rs11490937,chr. 01,222077,?
rs6683466,chr.... (5 Replies)
Dear Forum,
Full title of the topic would be: "Join 3 or more files using matching column without full list in any of these columns"
I have several, typically 3 or 4 files which I need to join, something like FULL JOIN in slq scripts, all combinations of matches should be printed into an... (3 Replies)
i have a file named keyword.csv(contains around 8k records) which contains a no. of columns.
The 5th column contains all the keywords.
I want to recursively search these keywords in all .pl files(around 1k) and display the filename....Afterthat i will use the filename and some of the column from... (3 Replies)
Hi,
Please excuse for often requesting queries and making R&D, I am trying to work out a possibility where i have two files field separated by pipe and another file containing only one field where there is no matching columns, Could you please advise how to merge two files.
$more... (3 Replies)
I have 2 files. File 1 has more columns (6 columns but the last column has spaces) than file 2 (file 2 has 4 columns). The entries in file 1 do not change but column 4 in file 2 can be different from the the entry in file 1. I want to create a script that reads in file 1 and then uses column 1 2... (5 Replies)
Hi all
I have a great challenge that I am not able to resolve.
Briefly, I have a file like this:
ID_1 chr1 100 -
ID_2 chr2 300 +
and another file like this:
name_1 chr1 150 no -
name_2 chr1 250 yes -
name_3 chr2 350 yes +
name_4 chr2 280 yes +
Well, for each entry in file1 I would... (2 Replies)
Hi,
I hope somebody can help me with this problem, since I would like to solve this problem using awk, but im not experienced enough with this.
I have two files which i want to match, and output the matching column name and row number.
One file contains 4 columns like this:
FILE1:
a ... (6 Replies)
there can be n number of columns but the number of columns and header name will remain same in all 3 files. Files are tab Delimited.
a.txt
Name 9/1 9/2
X 1 7
y 2 8
z 3 9
a 4 10
b 5 11
c 6 12
b.xt
Name 9/1 9/2
X 13 19
y 14 20
z 15 21
a 16 22
b 17 23
c 18 24 c.txt
Name 9/1 9/2... (14 Replies)
First I'd like to apologize if I opened a thread which is already open somewhere.
I did a bit of searching but could quite find what I was looking for, so I will try to explaing what I need.
I'm writing a script on our server, got to a point where I have two files with results. Example:
File1... (6 Replies)
I have 3 files. Each of those files have the same number of records, however certain records have different values. I would like to grep the field in ALL 3 files and display the output with only the differences in column wise and if possible line number
File1
Name = Joe
Age = 33... (3 Replies)
Discussion started by: sidnow
3 Replies
LEARN ABOUT DEBIAN
devel::refcount
Devel::Refcount(3pm) User Contributed Perl Documentation Devel::Refcount(3pm)NAME
"Devel::Refcount" - obtain the REFCNT value of a referent
SYNOPSIS
use Devel::Refcount qw( refcount );
my $anon = [];
print "Anon ARRAY $anon has " . refcount($anon) . " reference
";
my $otherref = $anon;
print "Anon ARRAY $anon now has " . refcount($anon) . " references
";
DESCRIPTION
This module provides a single function which obtains the reference count of the object being pointed to by the passed reference value.
FUNCTIONS
$count = refcount($ref)
Returns the reference count of the object being pointed to by $ref.
COMPARISON WITH SvREFCNT
This function differs from "Devel::Peek::SvREFCNT" in that SvREFCNT() gives the reference count of the SV object itself that it is passed,
whereas refcount() gives the count of the object being pointed to. This allows it to give the count of any referent (i.e. ARRAY, HASH,
CODE, GLOB and Regexp types) as well.
Consider the following example program:
use Devel::Peek qw( SvREFCNT );
use Devel::Refcount qw( refcount );
sub printcount
{
my $name = shift;
printf "%30s has SvREFCNT=%d, refcount=%d
",
$name, SvREFCNT($_[0]), refcount($_[0]);
}
my $var = [];
printcount 'Initially, $var', $var;
my $othervar = $var;
printcount 'Before CODE ref, $var', $var;
printcount '$othervar', $othervar;
my $code = sub { undef $var };
printcount 'After CODE ref, $var', $var;
printcount '$othervar', $othervar;
This produces the output
Initially, $var has SvREFCNT=1, refcount=1
Before CODE ref, $var has SvREFCNT=1, refcount=2
$othervar has SvREFCNT=1, refcount=2
After CODE ref, $var has SvREFCNT=2, refcount=2
$othervar has SvREFCNT=1, refcount=2
Here, we see that SvREFCNT() counts the number of references to the SV object passed in as the scalar value - the $var or $othervar
respectively, whereas refcount() counts the number of reference values that point to the referent object - the anonymous ARRAY in this
case.
Before the CODE reference is constructed, both $var and $othervar have SvREFCNT() of 1, as they exist only in the current lexical pad. The
anonymous ARRAY has a refcount() of 2, because both $var and $othervar store a reference to it.
After the CODE reference is constructed, the $var variable now has an SvREFCNT() of 2, because it also appears in the lexical pad for the
new anonymous CODE block.
PURE-PERL FALLBACK
An XS implementation of this function is provided, and is used by default. If the XS library cannot be loaded, a fallback implementation in
pure perl using the "B" module is used instead. This will behave identically, but is much slower.
Rate pp xs
pp 225985/s -- -66%
xs 669570/s 196% --
SEE ALSO
o Test::Refcount - assert reference counts on objects
AUTHOR
Paul Evans <leonerd@leonerd.org.uk>
perl v5.14.2 2011-11-15 Devel::Refcount(3pm)