11-24-2007
Insert rows with computations of next row
Hello folks,
I have data collected in every 3 hours. But, I would like to expand this to 1 hour interval by equally dividing with next row.
For example, I want to keep the first value 1987-01-01-00z 2.0, but following all record should be re-written as follow.
1987-01-01-03z 5.0 becomes 1.66667 after dividing by 3, then two new records 1987-01-01-01z 1.66667 and 1987-01-01-02z 1.66667 should be inserted, and continue...
Also, all precision should be same.
Thanks in advance.
Jae
<input>
1987-01-01-00Z 2.0
1987-01-01-03Z 5.0
1987-01-01-06Z 10.0
1987-01-01-09Z 120.0
1987-01-01-12Z 10
1987-01-01-15Z 8
1987-01-01-18Z 28.302
1987-01-01-21Z 282.566
1987-01-02-00Z 0
1987-01-02-03Z 2.0
<output>
1987-01-01-00Z 2.00000
1987-01-01-01Z 1.66667
1987-01-01-02Z 1.66667
1987-01-01-03Z 1.66667
1987-01-01-04Z 3.33333
1987-01-01-05Z 3.33333
1987-01-01-06Z 3.33333
1987-01-01-07Z 40.0000
1987-01-01-08Z 40.0000
1987-01-01-09Z 40.0000
1987-01-01-10Z 3.33333
1987-01-01-11Z 3.33333
1987-01-01-12Z 3.33333
1987-01-01-13Z 2.66667
1987-01-01-14Z 2.66667
1987-01-01-15Z 2.66667
1987-01-01-16Z 9.43400
1987-01-01-17Z 9.43400
1987-01-01-18Z 9.43400
1987-01-01-19Z 94.1887
1987-01-01-20Z 94.1887
1987-01-01-21Z 94.1887
1987-01-01-22Z 0.00000
1987-01-01-23Z 0.00000
1987-01-02-00Z 0.00000
1987-01-02-01Z 0.66667
1987-01-02-02Z 0.66667
1987-01-02-03Z 0.66667
Last edited by Jae; 11-26-2007 at 01:57 PM..
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LEARN ABOUT OSX
encode::kr
Encode::KR(3pm) Perl Programmers Reference Guide Encode::KR(3pm)
NAME
Encode::KR - Korean Encodings
SYNOPSIS
use Encode qw/encode decode/;
$euc_kr = encode("euc-kr", $utf8); # loads Encode::KR implicitly
$utf8 = decode("euc-kr", $euc_kr); # ditto
DESCRIPTION
This module implements Korean charset encodings. Encodings supported are as follows.
Canonical Alias Description
--------------------------------------------------------------------
euc-kr /euc.*kr$/i EUC (Extended Unix Character)
/kr.*euc$/i
ksc5601-raw Korean standard code set (as is)
cp949 /(?:x-)?uhc$/i
/(?:x-)?windows-949$/i
/ks_c_5601-1987$/i
Code Page 949 (EUC-KR + 8,822
(additional Hangul syllables)
MacKorean EUC-KR + Apple Vendor Mappings
johab JOHAB A supplementary encoding defined in
Annex 3 of KS X 1001:1998
iso-2022-kr iso-2022-kr [RFC1557]
--------------------------------------------------------------------
To find how to use this module in detail, see Encode.
BUGS
When you see "charset=ks_c_5601-1987" on mails and web pages, they really mean "cp949" encodings. To fix that, the following aliases are
set;
qr/(?:x-)?uhc$/i => '"cp949"'
qr/(?:x-)?windows-949$/i => '"cp949"'
qr/ks_c_5601-1987$/i => '"cp949"'
The ASCII region (0x00-0x7f) is preserved for all encodings, even though this conflicts with mappings by the Unicode Consortium.
SEE ALSO
Encode
perl v5.16.2 2012-08-26 Encode::KR(3pm)