Re: split a number to Date format

*To*: mathgroup at smc.vnet.net*Subject*: [mg124273] Re: split a number to Date format*From*: Michael Stern <nycstern at gmail.com>*Date*: Sun, 15 Jan 2012 04:50:26 -0500 (EST)*Delivered-to*: l-mathgroup@mail-archive0.wolfram.com*References*: <201201140754.CAA01282@smc.vnet.net>

Are these coming in as strings, or integers? Are they always the same length? Is the year always after 2000? I can't provide a general formula without knowing more about the source data but the following may help. I assume you start with an integer, so I convert it to a string, then break that into a list of characters, group them into a list of pairs, convert each pair back to integers, then add 2000 to the first element in the list. In[1]:= testnumber = 111205020000; In[2]:= Map[ToExpression[StringJoin[#]] &, Partition[Characters[ToString[testnumber]], 2]] + {2000, 0, 0, 0, 0, 0} You can pass the output from that through DateString[] if you need; I generally prefer to leave dates in list format where possible. Michael Stern On Jan 14, 2012, at 2:54 AM, Derek Martin wrote: > I have experimental data in spreadsheet format. The first column is a time stamp in the format 111205020000. > If I could parse or split the number 111205020000 into {11,12,05,02,00,00} and replace the first 11 with 2011, the Date commands would work fine. I can do the replacing, but am having difficulty seeing how to split the number into {11,12,05,02,00,00}. > > DateString[{2011, 12, 05, 02, 00, 00}] gives > "Mon 5 Dec 2011 02:00:00" > > Any help to convert my number to the right Date format would be appreciated. I am using Mathematica 8. > > Thanks in Advance > Derek >

**References**:**split a number to Date format***From:*Derek Martin <cdmartin@me.com>