Hi,
I have a file with 3 columns in it that are comma separated and it has about 5000 lines. What I want to do is find the most common value in column 3 using awk or a shell script or whatever works! I'm totally stuck on how to do this.
e.g.
value1,value2,bob
value1,value2,bob... (12 Replies)
Hi, I have two files file1 and file2. I have to merge the columns of those two files into file3 based on common column of two files. To be simple.
file1:
Row-id name1
13456 Rahul
16789 Vishal
18901 Karan
file2 :
Row-id place
18901 Mumbai
... (2 Replies)
Dear all
I have big file with two columns
A_AA960715 GO:0006952
A_AA960715 GO:0008152
A_AA960715 GO:0016491
A_AA960715 GO:0007165
A_AA960715 GO:0005618
A_AA960716 GO:0006952
A_AA960716 GO:0005618
A_AA960716... (15 Replies)
I have the following records from multiple files.
415 A G
415 A G
415 A T
415 A .
415 A .
421 G A
421 G A,C
421 G A
421 G A
421 G A,C
421 G .
427 A C
427 A ... (3 Replies)
hi i have two files and i wanted to join them using common column. try to do this using "join" command but that did not help.
File 1:
123 9a.vcf hy92.vcf hy90.vcf
Index Ref Alt Ref Alt Ref Alt
315 14 0 7 4 ... (6 Replies)
HI, I have a 3-column tab separated column (approx 1GB) in which I would like to count and output the frequency of all of the common elements in the 1st column.
For instance:
If my input was the following:
dot is-big 2
dot is-round 3
dot is-gray 4
cat is-big 3
hot in-summer 5
My... (4 Replies)
Hi,
I have a table to be imported for R as matrix or data.frame but I first need to edit it because I've got several lines with the same identifier (1st column), so I want to sum the each column (2nd -nth) of each identifier (1st column)
The input is for example, after sorted:
K00001 1 1 4 3... (8 Replies)
Hi All,
I would like get the minimum value in the certain column with respect to other column.
For example, I have a text file like this.
ATOM 1 QSS SPH S 0 -2.790 -1.180 -2.282 2.28 2.28
ATOM 1 QSS SPH S 1 -2.915 -1.024 -2.032 2.31 2.31
ATOM 1 ... (4 Replies)
Discussion started by: bala06
4 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)