Hi,
What's the "ruby way" to go from a date/time format that is "Year
Day_of_Year time" to "Year Month Day". E.g. I want to convert
year=2008, day_of_year=095, frequently represented as "2008-095" to it's
more usual format "2008-04-04". I've been playing with the Time class
and it's methods and found nifty ways to get yday, e.g.
Time.now.utc.yday, but how do I easily go backwards w/o writing my own
simple converter?
R
--
Posted via http://www.ruby-forum.com/.
What's the "ruby way" to go from a date/time format that is "Year
Day_of_Year time" to "Year Month Day". E.g. I want to convert
year=2008, day_of_year=095, frequently represented as "2008-095" to it's
more usual format "2008-04-04". I've been playing with the Time class
and it's methods and found nifty ways to get yday, e.g.
Time.now.utc.yday, but how do I easily go backwards w/o writing my own
simple converter?
How's this?
>> require "date"
=> true
>> Date.strptime("2008-095", "%Y-%j").to_s
=> "2008-04-04"
James Edward Gray II
On Apr 4, 2008, at 9:38 AM, Rob Redmon wrote:
hi rob-
james example is good - you might find this method quite useful with julian days to:
p Date.ordinal(2008,1).ctime #=> "Tue Jan 1 00:00:00 2008"
cheers
On Apr 4, 2008, at 8:38 AM, Rob Redmon wrote:
Hi,
What's the "ruby way" to go from a date/time format that is "Year
Day_of_Year time" to "Year Month Day". E.g. I want to convert
year=2008, day_of_year=095, frequently represented as "2008-095" to it's
more usual format "2008-04-04". I've been playing with the Time class
and it's methods and found nifty ways to get yday, e.g.
Time.now.utc.yday, but how do I easily go backwards w/o writing my own
simple converter?
R
--
we can deny everything, except that we have the possibility of being better. simply reflect on that.
h.h. the 14th dalai lama
James Gray wrote:
What's the "ruby way" to go from a date/time format that is "Year
Day_of_Year time" to "Year Month Day". E.g. I want to convert
year=2008, day_of_year=095, frequently represented as "2008-095" to
it's
more usual format "2008-04-04". I've been playing with the Time class
and it's methods and found nifty ways to get yday, e.g.
Time.now.utc.yday, but how do I easily go backwards w/o writing my own
simple converter?How's this?
>> require "date"
=> true
>> Date.strptime("2008-095", "%Y-%j").to_s
=> "2008-04-04"James Edward Gray II
Good idea, but doesn't work for me:
irb(main):065:0> Date.strptime("2008-095", "%Y-%J").to_s
ArgumentError: invalid date
from /usr/lib/ruby/1.8/date.rb:650:in `new_with_hash'
from /usr/lib/ruby/1.8/date.rb:675:in `strptime'
from (irb):65
Maybe my version of Ruby (1.8.1) is too old. The computer in question
is managed by the network pirates and unlikely to be upgraded. This is
a noob thought, but is there a way for me to locally upgrade the Date
class, ala a Ruby Gem?
R
On Apr 4, 2008, at 9:38 AM, Rob Redmon wrote:
from :0
--
Posted via http://www.ruby-forum.com/\.
ara.t.howard wrote:
On Apr 4, 2008, at 8:38 AM, Rob Redmon wrote:
Hi,
What's the "ruby way" to go from a date/time format that is "Year
Day_of_Year time" to "Year Month Day". E.g. I want to convert
year=2008, day_of_year=095, frequently represented as "2008-095" to
it's
more usual format "2008-04-04". I've been playing with the Time class
and it's methods and found nifty ways to get yday, e.g.
Time.now.utc.yday, but how do I easily go backwards w/o writing my own
simple converter?R
hi rob-
james example is good - you might find this method quite useful with
julian days to:p Date.ordinal(2008,1).ctime #=> "Tue Jan 1 00:00:00 2008"
cheers
Wicked, thanks Ara!
Caution to the wind; I'm building my own 1.8.6 to experiment with.
Rob
--
Posted via http://www.ruby-forum.com/\.
James Gray wrote:
How's this?
>> require "date"
=> true
>> Date.strptime("2008-095", "%Y-%j").to_s
=> "2008-04-04"James Edward Gray II
Now that is an awesome little method I didn't know about. Thanks James.
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Posted via http://www.ruby-forum.com/\.
yyyy, jjj, *ignored = yourdate.split '-'
date = Date.ordinal Integer(yyyy), Integer(jjj)
p date
On Apr 4, 2008, at 9:20 AM, Rob Redmon wrote:
Maybe my version of Ruby (1.8.1) is too old. The computer in question
is managed by the network pirates and unlikely to be upgraded. This is
a noob thought, but is there a way for me to locally upgrade the Date
class, ala a Ruby Gem?
--
we can deny everything, except that we have the possibility of being better. simply reflect on that.
h.h. the 14th dalai lama
put it on NFS - then just use it everywhere - bugger sysadmins
On Apr 4, 2008, at 9:24 AM, Rob Redmon wrote:
Caution to the wind; I'm building my own 1.8.6 to experiment with.
--
we can deny everything, except that we have the possibility of being better. simply reflect on that.
h.h. the 14th dalai lama