Hi,
I have a wide and long dataset which looks as follows:
0 3 4 2 3 0 2 2 ...
3 2 4 0 2 2 2 3 ...
0 3 4 2 0 4 4 4 ...
3 0 4 2 2 4 2 4 ...
....
I would like to obtain the minimum of each column (ignoring zero values) so the output would look like:
3 2 4 2 2 2 2 2
I have the... (3 Replies)
Hi Everyone,
I was wondering if someone could help me to transform my data into a format I need.
Here is an example of what my data looks like
E F G H
A 1 2 3 4
B 5 6 7 8
C 9 1 2 3
D 4 5 6 7
and this is what I would need it to look like:
AE 1
BE 5
CE 9
DE 4
AF 2
BF 6
CF 1 (6 Replies)
Hi Friends,
I have the following file
chr1 1 2
chr1 2 3
chr1 3 4
chr1 4 5
chr1 5 6
chr1 19 20
chr1 20 21
chr1 21 22
I want to compare the third column of record 1 to second column of next record and if the difference is zero, consider its third column and match it to next record... (4 Replies)
Hi,
I have a tab delimited text file where the first two columns equal numbers. I want to delete all rows where the value in the first column equals the second column. How do I go about doing that? Thanks!
Input:
1 1 ABC DEF
2 2 IJK LMN
1 2 ZYX OPW
Output:
1 2 ZYX OPW (2 Replies)
Hello,
I have two files as the following:
File1:
F0100020 A G
F0100030 A T
F0100040 A G
File2:
F0100040 A G BTA-28763-no-rs 77.2692
F0100030 A T BTA-29334-no-rs 11.4989
F0100020 A G BTA-29515-no-rs 127.006
I want to sort the second file based on the... (6 Replies)
hello,
I have a file as follows:
F0100010 A C F0100040 A G BTA-28763-no-rs 77.2692
F0100020 A G F0100030 A T BTA-29334-no-rs 11.4989
F0100030 A T F0100020 A G BTA-29515-no-rs 127.006
F0100040 A G F0100010 A C BTA-29644-no-rs 7.29827
F0100050 A... (9 Replies)
I have a file like this :
# cat list
cucm, location,76,2
cucm1,location1,76,4
cucm,location,80,8
cucm1,location1,90,8
cucm1,location1,87,11
cucm,location,67,9
and I want output like this :
cucm,location,76,2
cucm1,location1,76,4
cucm,location,80, 6 ===> (8-2 =6)
cucm1,location1,90,4... (5 Replies)
This is my input file :
# cat list 20130430121600, cucm, location,76,2 20130430121600,cucm1,location1,76,4 20130430122000,cucm,location,80,8 20130430122000,cucm1,location1,90,8 20130430140000,cucm1,location1,87,11 20130430140000, cucm,location,67,9
This is the required output
... (1 Reply)
In the awk I am trying to subtract the difference $3-$2 of each matching $4 before the first _ (underscore) and print that value in $13.
I think the awk will do that, but added comments. What I am not sure off is how to add a line or lines that will add sum each matching $13 value and put it in... (2 Replies)
Discussion started by: cmccabe
2 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)