Re: A Conditional File Import
- To: mathgroup at smc.vnet.net
- Subject: [mg66105] Re: [mg66076] A Conditional File Import
- From: János <janos.lobb at yale.edu>
- Date: Sat, 29 Apr 2006 03:41:09 -0400 (EDT)
- References: <200604281033.GAA03210@smc.vnet.net>
- Sender: owner-wri-mathgroup at wolfram.com
On Apr 28, 2006, at 6:33 AM, Gregory Lypny wrote: > > > Hello Everyone, > > I'm wondering if there's a way to do a conditional import of a file > into Mathematica. Say I wrote some code to process a lot of data and > it takes a long time to complete. After it's done, I save my results > by exporting to a text file. When I come back later (months > later...) to pick up where I left off, I'd like to avoid > inadvertently, and because of poor memory, running that long script > again if I already have the results on my hard drive (you would think > that I'd have the sense to check first, but no). > > I was thinking of a script that would work something like this: > > If there is a file X > then > import the file > else > [message] "The darn thing doesn't exist!" > Reprocess the raw data --- [message] "Better make some coffee." > End if > > Regards, > > Greg > Here is a newbie approach: SetDirectory["path_to_that_darn_thing"]; files = FileNames["*.darn"]; length=Length[files]; If[length==0,Print["The darn thing doesn't exist!"];FrontEndExecute [FrontEnd`HelpBrowserLookup["Gergory's_math_programs", "Reprocess_the_raw_data"]],]; Import["The_darn_thing"]; János --------------------------------------------------------- What is the difference between OS X and Vista ? Microsoft employees are exited about OS X. http://daringfireball.net/2006/04/windows_the_new_classic
- References:
- A Conditional File Import
- From: Gregory Lypny <gregory.lypny@videotron.ca>
- A Conditional File Import