06-22-2009
Matlab (more generally: sorting data by date)
I'm not sure if this really belongs anywhere on this forum but my previous experiences on here have shown me that you guys are very helpful so I figure I may as well try.
I have a bunch of large 2d arrays in matlab and each has a column for a date that each row corresponds to. The format is yymmdd except for everything for 2000 which is just mmdd.
I need to be able to separate the data based on season (ie DJF, MAM, JJA, SON) but I'm not sure what is the best way to go about it based on the format of the data. I could write a bunch of if statements to decide each season but the 2000 data complicates that method.
Any advice (you don't have to write anything out) would be much appreciated. It's been a few years since my last programming class and I can't remember the best practice for this.
10 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
I have a file where dates in the form mm/dd/yyyy is the first field. How do I sort the file by the date field?
Thanks,
Duckman (6 Replies)
Discussion started by: Duckman
6 Replies
2. UNIX for Dummies Questions & Answers
Hi at all,
I have to sort a log file on timestamp field. That's field is the third!
a log file sample.....
1|EVTVOD-1-20060709_000614|2006/07/09-0:11:23|0.3.8
1|EVTVOD-1-20060709_000614|2006/07/09-0:11:16|0.3.8
1|EVTVOD-1-20060709_000614|2006/07/09-0:11:20|0.3.8... (3 Replies)
Discussion started by: nmilella
3 Replies
3. Shell Programming and Scripting
Hi All,
I have a file say abc.txt with the below data.
1234 876S 01Mar2007 foo
1244 65DF 19Jan2007 boo
9924 234K 01Jan2006 koo
8866 8FGH 12Feb1999 roo
7777 ASDF 13May2007 soo
I need this file to be in sorted order depending on the date field.
e.g
8866 8FGH 12Feb1999 roo... (2 Replies)
Discussion started by: rinku11
2 Replies
4. Shell Programming and Scripting
Hi,
I have a list of files that take on the format ABCDE_yymmdd and wish to sort them in ascending date order. I can't use the unix time stamp for the file as this could possibly be different from the date given in the file name.
Does anyone know of any way this can be done using unix shell... (14 Replies)
Discussion started by: LiquidChild
14 Replies
5. UNIX and Linux Applications
hello,
debashish here.
i am working with 6 bit flash ADC design. So for calculation of INL and DNL ,i have to import data from cadence to MATLAB .
Can anybody help me out:confused: (1 Reply)
Discussion started by: DEBASHISH DASH
1 Replies
6. Shell Programming and Scripting
Hi,
PFB the data:
C_Random_130417
Java_Random_130518
Perl_Random_120519
Perl_Random_120528
so the values are ending with year,i.e.,130417
i want to sort the values with date.
i want the output like this:
Perl_Random_120519
Perl_Random_120528
C_Random_130417
Java_Random_130518
can... (5 Replies)
Discussion started by: arindam guha
5 Replies
7. Shell Programming and Scripting
I am trying to sort by two columns. The first column in an ID, the second is a date in the form yyyy-mm-dd. I need to sort by the ID column, then in ascending order for the date column (earliest date to most recent date compared to today).
Input data:
012-abc 2012-04-25 ... (3 Replies)
Discussion started by: mollydog11
3 Replies
8. Shell Programming and Scripting
Hello.
Sorting data file by date and time with the following issues:
Date is in the following format m/d/yyyy, no leading zeros
Time is in the following format h:m:s AM/PM, no leading zeros
Any ideas on how to sort data when the above issues?
Could the date/time be converted inline to... (5 Replies)
Discussion started by: JimBurns
5 Replies
9. UNIX for Dummies Questions & Answers
I have file having below data
01-MAY-13 2.38.11.00.100089 IN 4512 0000741881
01-JUN-13 2.38.11.00.100089 IN 1514 0000764631
01-NOV-13 2.38.11.00.100089 IN 1514 0000856571
01-NOV-13 2.38.15.00.100015 IN 300.32 0000856531
01-JUN-13 2.38.19.00.100000 IN 2698 0000764493
01-JUL-13... (2 Replies)
Discussion started by: ranabhavish
2 Replies
10. Shell Programming and Scripting
I have file a.txt having below data
cat a.txt
01-MAY-13 2.38.11.00.100089 IN 4512 0000741881
01-JUN-13 2.38.11.00.100089 IN 1514 0000764631
01-NOV-13 2.38.11.00.100089 IN 1514 0000856571
01-NOV-13 2.38.15.00.100015 IN 300.32 0000856531
01-JUN-13 2.38.19.00.100000 IN 2698 0000764493... (5 Replies)
Discussion started by: ranabhavish
5 Replies
DDATE(1) Emperor Norton Utilities DDATE(1)
NAME
ddate - converts Gregorian dates to Discordian dates
SYNOPSIS
ddate [+format] [date]
DESCRIPTION
ddate prints the date in Discordian date format.
If called with no arguments, ddate will get the current system date, convert this to the Discordian date format and print this on the stan-
dard output. Alternatively, a Gregorian date may be specified on the command line, in the form of a numerical day, month and year.
If a format string is specified, the Discordian date will be printed in a format specified by the string. This mechanism works similarly to
the format string mechanism of date(1), only almost completely differently. The fields are:
%A Full name of the day of the week (i.e., Sweetmorn)
%a Abbreviated name of the day of the week (i.e., SM)
%B Full name of the season (i.e., Chaos)
%b Abbreviated name of the season (i.e., Chs)
%d Ordinal number of day in season (i.e., 23)
%e Cardinal number of day in season (i.e., 23rd)
%H Name of current Holyday, if any
%N Magic code to prevent rest of format from being printed unless today is a Holyday.
%n Newline
%t Tab
%X Number of days remaining until X-Day. (Not valid if the SubGenius options are not compiled in.)
%{
%} Used to enclose the part of the string which is to be replaced with the words "St. Tib's Day" if the current day is St. Tib's Day.
%. Try it and see.
EXAMPLES
% ddate
Sweetmorn, Bureaucracy 42, 3161 YOLD
% ddate +'Today is %{%A, the %e of %B%}, %Y. %N%nCelebrate %H'
Today is Sweetmorn, the 42nd of Bureaucracy, 3161.
% ddate +"It's %{%A, the %e of %B%}, %Y. %N%nCelebrate %H" 26 9 1995
It's Prickle-Prickle, the 50th of Bureaucracy, 3161.
Celebrate Bureflux
% ddate +"Today's %{%A, the %e of %B%}, %Y. %N%nCelebrate %H" 29 2 1996
Today's St. Tib's Day, 3162.
BUGS
ddate(1) will produce undefined behavior if asked to produce the date for St. Tib's day and its format string does not contain the St.
Tib's Day delimiters %{ and %}.
NOTE
After `X-Day' passed without incident, the Church of the SubGenius declared that it had got the year upside down - X-Day is actually in
8661 AD rather than 1998 AD. Thus, the True X-Day is Cfn 40, 9827.
AUTHOR
Original program by Druel the Chaotic aka Jeremy Johnson (mpython@gnu.ai.mit.edu)
Major rewrite by Lee H:. O:. Smith, KYTP, aka Andrew Bulhak (acb@dev.null.org)
Five tons of flax.
DISTRIBUTION POLICY
Public domain. All rites reversed.
SEE ALSO
date(1),
http://www.subgenius.com/
Malaclypse the Younger, Principia Discordia, Or How I Found Goddess And What I Did To Her When I Found Her
AVAILABILITY
The ddate command is part of the util-linux package and is available from ftp://ftp.kernel.org/pub/linux/utils/util-linux/.
59 Bureaucracy 3161 DDATE(1)