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Full Discussion: awk calculation with zero as N/A
Top Forums Shell Programming and Scripting awk calculation with zero as N/A Post 302973895 by RavinderSingh13 on Monday 23rd of May 2016 02:50:13 PM
Old 05-23-2016
Hello Don,

Thank you for nice code, just correcting a typo here.
Code:
 awk '
function ceil(v) {
     return int(v)==v?v:int(v+1)
}
NR==FNR{
     f1[$1]=$2
     next
} 
$1 in f1{
     print $1, ($3 == 0) ? "NaN" : (ceil(10000*(1-f1[$1]/$3))/100 "%")
}
{    print ($2 == 0 ? "NaN" : $1 / $2)
}' file1 file2

Thanks,
R. Singh
This User Gave Thanks to RavinderSingh13 For This Post:
Don Cragun
 

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LEARN ABOUT HPUX

ceilw

ceil(3M)																  ceil(3M)

NAME

       ceil(), ceilf(), ceill(), ceilw(), ceilq() - ceiling functions

SYNOPSIS

   HP Integrity Server Only
DESCRIPTION

       The returns the smallest integer (represented as a double-precision number) not less than x.

   Integrity Server Only
       is a version of it takes a argument and returns a result.

       is a version of it takes a argument and returns a result.

       is an version of it takes an argument and returns an result.

       is equivalent to on HP-UX systems.

USAGE

       To use (for Integrity servers) compile either with the default option or with the option.

       To use (for Integrity servers) compile either with the default option or with the and options.

       To use (for Integrity servers) or compile also with the option.

       To use these functions, make sure your program includes Link in the math library by specifying on the compiler or linker command line.

       For more information, see the at the following site:

RETURN VALUE

       If x is returns x.

       If x is NaN, returns NaN.

       may raise the inexact exception if x is non integral and finite.

ERRORS

       No errors are defined.

SEE ALSO

       fabs(3M), floor(3M), fmod(3M), rint(3M), math(5).

STANDARDS CONFORMANCE

       : SVID3, XPG4.2, ANSI C, ISO/IEC C99 (including Annex F, ``IEC 60559 floating-point arithmetic'')

       : ISO/IEC C99 (including Annex F, ``IEC 60559 floating-point arithmetic'')

																	  ceil(3M)
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