Mathematica 9 is now available
Services & Resources / Wolfram Forums / MathGroup Archive
-----

MathGroup Archive 2012

[Date Index] [Thread Index] [Author Index]

Search the Archive

Re: Using Table and ignoring all errors and warnings?

  • To: mathgroup at smc.vnet.net
  • Subject: [mg125713] Re: Using Table and ignoring all errors and warnings?
  • From: Alexei Boulbitch <Alexei.Boulbitch at iee.lu>
  • Date: Thu, 29 Mar 2012 04:06:44 -0500 (EST)
  • Delivered-to: l-mathgroup@mail-archive0.wolfram.com

I would like to use Table function, but have it ignore any errors or warnings and skip that value if one is produced.

Illustrative Example:

Table[1/i, {i, -3, 2}]
Power::infy: Infinite expression 1/0 encountered. >>
{-(1/3), -(1/2), -1, ComplexInfinity, 1, 1/2}

I would like the output to just be

{-(1/3), -(1/2), -1, 1, 1/2}

with no errors/warnings given as messages and the index that would produce a message to just be ignored. It's not just specific to 1/0 error, but any type of error or warning I want it to ignore it and skip to the next value; with the final output being a list of valid answers according to expr.

Is there a way to do that? Thanks!


Try this:

Select[Table[1/i, {i, -3, 2}], NumericQ[#] &] // Quiet

{-(1/3), -(1/2), -1, 1, 1/2}


Alexei BOULBITCH, Dr., habil.
IEE S.A.
ZAE Weiergewan,
11, rue Edmond Reuter,
L-5326 Contern, LUXEMBOURG

Office phone :  +352-2454-2566
Office fax:       +352-2454-3566
mobile phone:  +49 151 52 40 66 44

e-mail: alexei.boulbitch at iee.lu







  • Prev by Date: Re: Typesetting in Mathematica (TraditionalForm typesetting?)
  • Next by Date: Re: Manipulate[Plot[Evaluate[expr]]]
  • Previous by thread: Re: Using Table and ignoring all errors and warnings?
  • Next by thread: Complex Solutions in a bounded region (two equations)