Hello. Im just starting to learn awk so hang in there with me...I have a large text file formatted as such everything is in a single column
ID001
value 1
value 2
value....n
ID002
value 1
value 2
value... n
I want to be able to calculate the average for values for each ID from the... (18 Replies)
Dear Guyz:)
I have 2 different input files like this. I would like to pick the values or letters from the inputfile2 based on inputfile1 keys (A,F,N,X,Z).
I have done similar task by using awk but in that case the inputfiles are similar like in inputfile2 (all keys in 1st column and values in... (16 Replies)
Hi Experts,
The content of the raw file:
date,nomsgsent,nomsgnotdeliver,nomsgdelay
201003251000,1000,1,2
201003251000,900,0,0
201003251000,1450,0,0
201003251000,1230,0,0
However, sometimes, the column will missing in the raw files:
e.g.
date,nomsgsent,nomsgdelay... (8 Replies)
Hello,
I have 2 columns (1st column has multiple entries but the corresponding values in the column 2 may be the same or different.) however I want to extract unique values for each entry in column 1 by assigning the max value from column 2
SDF4 -0.211654
SDF4 0.978068
... (1 Reply)
please help!!!!!!
I have a file .txt that has only one column like that:
34.1
35.5
35.6
45.6
...
Now, i want to add a column in the left in which the values of this column increase by 0.4 , for example:
0.0 34.1
0.4 35.5
0.8 35.6
1.2 45.6
How can i do with awk instructions??? ... (2 Replies)
Hi all !
If there is only one single value in a column (e.g. column 1 below), then return this value in the same output column.
If there are several values in the same column (e.g. column 2 below), then return the different values separated by "," in the output.
pipe-separated input:
... (11 Replies)
Hello,
I have a table as shown below. I want to concatenate values in col2 and col3 based on a value in col4.
1 X Y A
3 Y Z B
4 A W B
5 T W A
If col4 is A, then I want to concatenate col3 with itself. Otherwise it should concateneate col2 with col3.
1 X Y YY
3 Y Z YZ... (10 Replies)
Hi,
My input files is like this
axis1 0 1 10
axis2 0 1 5
axis1 1 2 -4
axis2 2 3 -3
axis1 3 4 5
axis2 3 4 -1
axis1 4 5 -6
axis2 4 5 1
Now, these are my following tasks
1. Print a first column for every two rows that has the same value followed by a string.
2. Match on the... (3 Replies)
Please help me to get required output for both scenario 1 and scenario 2 and need separate code for both scenario 1 and scenario 2
Scenario 1
i need to do below changes only when column1 is CR and column3 has duplicates rows/values. This inputfile can contain 100 of this duplicated rows of... (1 Reply)
Discussion started by: as7951
1 Replies
LEARN ABOUT DEBIAN
tree::simple::visitor::postordertraversal
Tree::Simple::Visitor::PostOrderTraversal(3pm) User Contributed Perl Documentation Tree::Simple::Visitor::PostOrderTraversal(3pm)NAME
Tree::Simple::Visitor::PostOrderTraversal - A Visitor for post-order traversal a Tree::Simple hierarchy
SYNOPSIS
use Tree::Simple::Visitor::PostOrderTraversal;
# create an visitor
my $visitor = Tree::Simple::Visitor::PostOrderTraversal->new();
# pass our visitor to the tree
$tree->accept($visitor);
# print our results
print join ", " => $visitor->getResults();
# this will print this:
# 1.1.1 1.1 1.2 1 2.1 2 3.1 3
# assuming your tree is like this:
# 1
# 1.1
# 1.1.1
# 1.2
# 2
# 2.1
# 3
# 3.1
DESCRIPTION
Post-order traversal is a variation of the depth-first traversal in which the sub-tree's are processed before the parent. It is another
alternative to Tree::Simple's "traverse" method which implements a depth-first, pre-order traversal.
METHODS
new There are no arguments to the constructor the object will be in its default state. You can use the "setNodeFilter" method to customize
its behavior.
includeTrunk ($boolean)
Based upon the value of $boolean, this will tell the visitor to include the trunk of the tree in the traversal as well.
setNodeFilter ($filter_function)
This method accepts a CODE reference as its $filter_function argument and throws an exception if it is not a code reference. This code
reference is used to filter the tree nodes as they are collected. This can be used to customize output, or to gather specific
information from a more complex tree node. The filter function should accept a single argument, which is the current Tree::Simple
object.
visit ($tree)
This is the method that is used by Tree::Simple's "accept" method. It can also be used on its own, it requires the $tree argument to be
a Tree::Simple object (or derived from a Tree::Simple object), and will throw and exception otherwise.
getResults
This method returns the accumulated results of the application of the node filter to the tree.
BUGS
None that I am aware of. Of course, if you find a bug, let me know, and I will be sure to fix it.
CODE COVERAGE
See the CODE COVERAGE section in Tree::Simple::VisitorFactory for more inforamtion.
SEE ALSO
These Visitor classes are all subclasses of Tree::Simple::Visitor, which can be found in the Tree::Simple module, you should refer to that
module for more information.
AUTHOR
stevan little, <stevan@iinteractive.com>
COPYRIGHT AND LICENSE
Copyright 2004, 2005 by Infinity Interactive, Inc.
<http://www.iinteractive.com>
This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself.
perl v5.10.1 2005-07-14 Tree::Simple::Visitor::PostOrderTraversal(3pm)