ElementData[] Problems
in [Mathematica]
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From: Sean McConnell on 26 Jan 2010 06:23 Hi, whenever I try to use ElementData[], Mathematica keeps returning $Failed. Do I need to load a particular package before using it like I would with <<PhysicalConstants` ? Thanks for the help! Sean.
From: Sjoerd C. de Vries on 27 Jan 2010 01:44 Perhaps your computer isn't connected to the internet or behind a very restrictive firewall? Cheers -- Sjoerd On Jan 26, 1:23 pm, Sean McConnell <smcco...(a)physi.uni-heidelberg.de> wrote: > Hi, whenever I try to use ElementData[], Mathematica keeps returning > $Failed. > > Do I need to load a particular package before using it like I would with > <<PhysicalConstants` ? > > Thanks for the help! > > Sean.
From: Bob Hanlon on 27 Jan 2010 01:45 The firewall may not be allowing access to the required IP address(es) or port(s). Check with your system administrator. Bob Hanlon ---- Sean McConnell <smcconne(a)physi.uni-heidelberg.de> wrote: ============= Hmm, I think I am behind a firewall, how does that create such a problem though? Am Dienstag, den 26.01.2010, 07:25 -0500 schrieb Bob Hanlon: > ElementData[#, "Abbreviation"] & /@ ElementData[] -- Bob Hanlon
From: Sean McConnell on 27 Jan 2010 01:45 Hmm, I think I am behind a firewall, how does that create such a problem though? Am Dienstag, den 26.01.2010, 07:25 -0500 schrieb Bob Hanlon: > ElementData[#, "Abbreviation"] & /@ ElementData[]
From: David Bailey on 27 Jan 2010 01:46
Sean McConnell wrote: > Hi, whenever I try to use ElementData[], Mathematica keeps returning > $Failed. > > Do I need to load a particular package before using it like I would with > <<PhysicalConstants` ? > > Thanks for the help! > > Sean. > > All the 'paclet' data sets use the internet to obtain and update their information. This seems to mean that: 1) The first time one is used (or maybe used in a different way), you must be connected to the internet. The information is then cached locally. 2) Subsequently, you can retrieve data without an internet connection, but if you have a weak connection Mathematica may start to access the internet for any updates and then fail if the connection breaks! I have found it best to retrieve any information required by a program, and then store it locally for subsequent use by the program - thus making my software independent of the internet. David Bailey http://www.dbaileyconsultancy.co.uk |