04-19-2011
Hi Jim,
Perhaps nearest should be the key. How I'm thinking is that as the files are looping the nearest match can be found and that is the one to use.
So $2 on file one has a number of 53.728563 and the nearest match on $2 on file two is 53.78.
Once that number has been found then loop though $3 on both files, but only look at the 53.78 numbers (the number we found on $2) there will be quite a few on file 2 and return then nearest match which would be -2.44 and print out the rest..........
I dont think I'm making this sound easy am I? But please stay with me on this :-)
Cheers,
Ian
---------- Post updated at 01:17 PM ---------- Previous update was at 01:07 PM ----------
Hang on.....I will try and explain this again..
If I have one file called A.txt with
1
2
3
4
5
And I have another with
1.1
2.1
1.3
5.1
0.9
Is it possible to return a output file like this
1 0.9
1 1.1
1 1.3
2 2.1
5 5.1
As you can see I have matched up the nearest number from one file to another... I'm not sure whether this is possible to do, but this is what I desire :-)
Many thanks for looking at this
Cheers,
Ian
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LEARN ABOUT HPUX
fe_dec_getround
fe_dec_getround(3M) fe_dec_getround(3M)
NAME
fe_dec_getround() - get decimal floating-point rounding direction mode
SYNOPSIS
DESCRIPTION
The function gets the current decimal rounding direction.
The default decimal rounding direction mode is round to nearest with half-way cases away from zero
These math functions are supported for HP-UX 11i Version 3 September 2008 Update and forward.
USAGE
To use this function, compile with the option.
Make sure your program defines and then includes
Specify on the compiler command line or place the call to this function under the effect of an affirmative pragma:
If the pragma is placed outside of any top-level declarations in a file, the pragma will apply until another pragma is encountered or until
the end of the file is reached.
If the pragma is placed at the beginning of a block (compound statement), the pragma will apply until another pragma is encountered or
until the end of the block is reached.
Link in the math library by specifying or on the linking command line.
For more information, see the at the following site:
RETURN VALUE
The function returns the value of the decimal rounding direction macro representing the current decimal rounding direction. The return
value will match one of the following macros, which are defined in
Round to nearest. If the two nearest representable are equally near,
the one with its least significant bit zero is delivered.
Round to nearest. If the two nearest representable are equally near,
the one furthest from zero is delivered.
Round upwards (towards +infinity).
Round downwards (towards -infinity).
Round toward zero.
ERRORS
No errors are defined.
EXAMPLES
Save, set, and restore the decimal rounding direction.
SEE ALSO
fe_dec_setround(3M), fenv(5).
STANDARDS CONFORMANCE
This function conforms to ISO/IEC TR 24732, "Extension for the programming language C to support decimal floating-point arithmetic".
fe_dec_getround(3M)