Services & Resources / Wolfram Forums / MathGroup Archive
-----

MathGroup Archive 2011

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

Search the Archive

Re: weibull plot on weibull scaled paper

  • To: mathgroup at smc.vnet.net
  • Subject: [mg116690] Re: weibull plot on weibull scaled paper
  • From: DrMajorBob <btreat1 at austin.rr.com>
  • Date: Thu, 24 Feb 2011 06:21:47 -0500 (EST)

BUG ALERT.

I typed all three lines into separate cells.

I get FindRoot::sszero and FindRoot::jsing errors.

Bobby

On Wed, 23 Feb 2011 04:24:12 -0600, Bill Rowe <readnews at sbcglobal.net>  
wrote:

> On 2/22/11 at 1:12 PM, btreat1 at austin.rr.com (DrMajorBob) wrote:
>
>> This gave the FindRoot:jsing error on the first try just now... and
>> also the third try.
>
>> dist = WeibullDistribution[7, 200];
>> data = RandomVariate[dist, 300];
>> ProbabilityScalePlot[data, "Weibull"]
>> QuantilePlot[data, dist]
>
>> So the error is not unusual.
>
> Hmmm... If I copy and paste just
>
> dist = WeibullDistribution[7, 200];
> data = RandomVariate[dist, 300];
> ProbabilityScalePlot[data, "Weibull"]
>
> into a single cell then execute it, I see the error you
> reported. Alternatively, if I type the above by hand into a
> single cell I still see the error you reported consistently. Or
> I can copy each line one by one pasting each into a cell then
> execute each line before pasting the next and still get the error.
>
> But if I enter each line by hand into individual cells, I don't
> see the error. So, there appears to be a bug somewhere. That is,
> the various ways I've described above of doing the computation
> should all behave identically.
>
>


-- 
DrMajorBob at yahoo.com


  • Prev by Date: Re: Integral with singularities
  • Next by Date: Re: Solved: Factor/Simplify set of complex expressions
  • Previous by thread: Re: weibull plot on weibull scaled paper
  • Next by thread: Re: weibull plot on weibull scaled paper