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Re: Kernel hang during FindFit under 5.1 for Linux

  • To: mathgroup at smc.vnet.net
  • Subject: [mg63584] Re: [mg63556] Kernel hang during FindFit under 5.1 for Linux
  • From: <bsyehuda at gmail.com>
  • Date: Fri, 6 Jan 2006 05:24:26 -0500 (EST)
  • References: <200601050812.DAA19840@smc.vnet.net>
  • Sender: owner-wri-mathgroup at wolfram.com

Hi,
There is no point of reporting a bug to WRI.
It works on version 5.2, so you should consider it as fixed bug.
Recommend you sysAdmin to upgrade to 5.2
regards
yehuda

On 1/5/06, Xerxes <Xerxes314 at gmail.com> wrote:
>
> Hi all,
>
> I was running some of my analysis code that I originally produced under
> version 5.0 on Linux, and to my surprise, the notebook would not run
> under 5.1. I fiddled with the part where it was hanging and reduced it
> to the appended test case in which increasingly many data points
> are added to a trivial FindFit to a constant. No result is produced
> when 17 data points are taken; at that point, the Kernel hangs and
> does not quit when Quit is selected from the menu. Its process
> cannot be killed normally and must be killed using kill -9. The bug
> is not reproduced under 5.1 for Windows.
>
> I fished around here but did not see any similar cases. So my questions
> would be:
>
> Is there a workaround for this bug?
> Should I bother the sysadmin to upgrade me to 5.2?
> Should I report this to Wolfram?
>
> Thanks,
> Xerxes
>
> In[1]:=
> $Version
> data = Table[Random[], {30}];
> Do[
>   Print[i, ": ",
>     FindFit[Take[data, i], a, {a}, x]
>   ],
> {i, Length[data]}]
>
> Out[1]=
> 5.1 for Linux (October 25, 2004)
>
> 1: {a->0.481796}
> ...
> clipped 2 through 15
> ...
> 16: {a->0.576249}
>
>



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