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Re: weibull plot on weibull scaled paper


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


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