|
|
Sponsored Content
Top Forums
UNIX for Dummies Questions & Answers
Assigning values to an array
Post 77767 by vgersh99 on Tuesday 12th of July 2005 05:12:53 PM
|
|
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
I have to add a variable value to an array, something like this:
......
@my_array_name = $value_of_this_variable;
This doesnt seem to work, any ideas why?
Thanks! (4 Replies)
Discussion started by: looza
4 Replies
2. Shell Programming and Scripting
hi every body,
i donot know how to assign a array varible with a file
see i having file
more file
property1 Name
property2 Address
the above two line are tab Space seperated between the property and its value
i want to seperate it and assign to... (1 Reply)
Discussion started by: kkraja
1 Replies
3. Shell Programming and Scripting
I need to do something like this:
for i in 1 2 3 4 5; do
arr=$(awk 'NR="$i" { print $2 }' file_with_5_records)
done
That is, parse a file and assign values to an array in an ascending order relative to the number of record in the file that is being processed on each loop.
Is my... (2 Replies)
Discussion started by: fiori_musicali
2 Replies
4. Shell Programming and Scripting
Hello,
Can somebody please give me a snippet for the below requirement.
I want to assign the values separeted by a comma to be assigned to a dynamic array.
If I give an input (read statement) like abc1,abc2,abc3,abc4,abc5, all these strings abc* should be assigned to an array like below... (2 Replies)
Discussion started by: suneelj
2 Replies
5. Emergency UNIX and Linux Support
set -A matched #find referenced files.
for i in ${file_names_html}
do
counter_j=0
for j in ${file_names_minus_index}
do
match=`cat $i | grep... (1 Reply)
Discussion started by: robin_simple
1 Replies
6. Shell Programming and Scripting
hi
My script as below
#!/bin/ksh
for i in `seq 1 7`
do
a=$(awk '{print $i}' /home/rama/expenese.txt)
done
for i in `seq 1 7`
do
echo "${a}"
done
content of expense.txt is as below
5032 210179 3110 132813874 53488966 11459221 5300794
I want output as... (6 Replies)
Discussion started by: Ramakrishna V
6 Replies
7. Shell Programming and Scripting
Hi ,
i have file which is having two fields in it (#delimited)
ABC#FILE_01.DAT
DEF#FILE_02.DAT
i want to write first field values to one array example A_01 and second field values to B_02 array
please let me know how to do this ,my final requirement i have send out a mail for each record... (2 Replies)
Discussion started by: kkabc789
2 Replies
8. Shell Programming and Scripting
I know that
@food = %fruit;
Works. But how do I assign %fruit and %veggies to @food ? (2 Replies)
Discussion started by: popeye
2 Replies
9. Shell Programming and Scripting
I want to extract each and single character from a password string and put it in an array.
I tried this :
set -A password "echo $passwd | awk '{for (i=1; i<=length($1); i++) printf "%s ",substr($1,i,1)}'`
It's working as long that the password string doesn't contains any *
I tried a few... (5 Replies)
Discussion started by: ce9888
5 Replies
10. Shell Programming and Scripting
Hi,
I have the following code that makes use of a URL that I store in a variable then create a document object below to work on it.
$dom = new DOMDocument;
@$dom->loadHTML($html);
$links = $dom->getElementsByTagName('a');
$links = $dom->getElementsByTagName('a');
... (0 Replies)
Discussion started by: mojoman
0 Replies
LEARN ABOUT DEBIAN
fuzzy
math::fuzzy(3tcl) Tcl Math Library math::fuzzy(3tcl) __________________________________________________________________________________________________________________________________________________ NAME
math::fuzzy - Fuzzy comparison of floating-point numbers SYNOPSIS
package require Tcl ?8.3? package require math::fuzzy ?0.2? ::math::fuzzy::teq value1 value2 ::math::fuzzy::tne value1 value2 ::math::fuzzy::tge value1 value2 ::math::fuzzy::tle value1 value2 ::math::fuzzy::tlt value1 value2 ::math::fuzzy::tgt value1 value2 ::math::fuzzy::tfloor value ::math::fuzzy::tceil value ::math::fuzzy::tround value ::math::fuzzy::troundn value ndigits _________________________________________________________________ DESCRIPTION
The package Fuzzy is meant to solve common problems with floating-point numbers in a systematic way: o Comparing two numbers that are "supposed" to be identical, like 1.0 and 2.1/(1.2+0.9) is not guaranteed to give the intuitive result. o Rounding a number that is halfway two integer numbers can cause strange errors, like int(100.0*2.8) != 28 but 27 The Fuzzy package is meant to help sorting out this type of problems by defining "fuzzy" comparison procedures for floating-point numbers. It does so by allowing for a small margin that is determined automatically - the margin is three times the "epsilon" value, that is three times the smallest number eps such that 1.0 and 1.0+$eps canbe distinguished. In Tcl, which uses double precision floating-point numbers, this is typically 1.1e-16. PROCEDURES
Effectively the package provides the following procedures: ::math::fuzzy::teq value1 value2 Compares two floating-point numbers and returns 1 if their values fall within a small range. Otherwise it returns 0. ::math::fuzzy::tne value1 value2 Returns the negation, that is, if the difference is larger than the margin, it returns 1. ::math::fuzzy::tge value1 value2 Compares two floating-point numbers and returns 1 if their values either fall within a small range or if the first number is larger than the second. Otherwise it returns 0. ::math::fuzzy::tle value1 value2 Returns 1 if the two numbers are equal according to [teq] or if the first is smaller than the second. ::math::fuzzy::tlt value1 value2 Returns the opposite of [tge]. ::math::fuzzy::tgt value1 value2 Returns the opposite of [tle]. ::math::fuzzy::tfloor value Returns the integer number that is lower or equal to the given floating-point number, within a well-defined tolerance. ::math::fuzzy::tceil value Returns the integer number that is greater or equal to the given floating-point number, within a well-defined tolerance. ::math::fuzzy::tround value Rounds the floating-point number off. ::math::fuzzy::troundn value ndigits Rounds the floating-point number off to the specified number of decimals (Pro memorie). Usage: if { [teq $x $y] } { puts "x == y" } if { [tne $x $y] } { puts "x != y" } if { [tge $x $y] } { puts "x >= y" } if { [tgt $x $y] } { puts "x > y" } if { [tlt $x $y] } { puts "x < y" } if { [tle $x $y] } { puts "x <= y" } set fx [tfloor $x] set fc [tceil $x] set rounded [tround $x] set roundn [troundn $x $nodigits] TEST CASES
The problems that can occur with floating-point numbers are illustrated by the test cases in the file "fuzzy.test": o Several test case use the ordinary comparisons, and they fail invariably to produce understandable results o One test case uses [expr] without braces ({ and }). It too fails. The conclusion from this is that any expression should be surrounded by braces, because otherwise very awkward things can happen if you need accuracy. Furthermore, accuracy and understandable results are enhanced by using these "tolerant" or fuzzy comparisons. Note that besides the Tcl-only package, there is also a C-based version. REFERENCES
Original implementation in Fortran by dr. H.D. Knoble (Penn State University). P. E. Hagerty, "More on Fuzzy Floor and Ceiling," APL QUOTE QUAD 8(4):20-24, June 1978. Note that TFLOOR=FL5 took five years of refereed evolution (publication). L. M. Breed, "Definitions for Fuzzy Floor and Ceiling", APL QUOTE QUAD 8(3):16-23, March 1978. D. Knuth, Art of Computer Programming, Vol. 1, Problem 1.2.4-5. BUGS, IDEAS, FEEDBACK This document, and the package it describes, will undoubtedly contain bugs and other problems. Please report such in the category math :: fuzzy of the Tcllib SF Trackers [http://sourceforge.net/tracker/?group_id=12883]. Please also report any ideas for enhancements you may have for either package and/or documentation. KEYWORDS
floating-point, math, rounding CATEGORY
Mathematics math 0.2 math::fuzzy(3tcl)