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Re: list of dates

  • To: mathgroup at smc.vnet.net
  • Subject: [mg88394] Re: list of dates
  • From: Albert Retey <awnl at arcor.net>
  • Date: Sat, 3 May 2008 06:20:39 -0400 (EDT)
  • References: <fvegu1$5e9$1@smc.vnet.net>

Roger Nye wrote:
> Hi,
> I have a list of dates in the format YYYY-MM-DD and I want to convert them 
> to a decimal value, so 1963-01-01 goes to 63.0 and 1985-07-01 goes roughly 
> to 85.5.
> 
> Any suggestions on the best way to do this?

In version 6:

DateDifference["1900-01-01", "1963-01-01", "Year"][[1]]

DateDifference["1900-01-01", "1985-07-01", "Year"][[1]]

hth,

albert


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