Re: [Sgems-users] Some answer on "Indicator coding for categorical variable transformation" ?

[Alexandre B. <abo...@st...>]

Hi Frederique,

There is a bug in that version when creating indicator variables.  Note
that I do not anymore support that version of sgems.  I have been working
on a new version with new visualization and added functionalities.  These
include the indicator transform but also categorical variables such as
post-processing of categories (as you mentionned in your previous emails).
 That version is in advanced stage, I am currently using it in short course
and would be available soon.  If you want to help in the development, send
me an email at abo...@ar... and I will send you a version in return
of feedbacks.

In your current situation you will have to write a small python script to
transform the data into indicators.


Best,
Alex.

p.s. I would suggest you to subscribe on the linkedin sgems group to get
the latest news.

On Thu, Jul 26, 2012 at 9:26 AM, FOURNIER Frederique <
fre...@be...> wrote:

>  Does someone have elements for helping me on the problem I mentioned
> below, with post processing of categorical variable simulations, and
> necessary indicator transformations of the simulations preliminary to the
> post-processing?****
>
> ** **
>
> Thank you for your help,****
>
> ** **
>
> Frédérique****
>
> ** **
>
> ** **
>
> *De :* FOURNIER Frederique
> *Envoyé :* mardi 24 juillet 2012 11:22
> *À :* sge...@li...
> *Cc :* FOURNIER Frederique
> *Objet :* Indicator coding for categorical variable transformation****
>
> ** **
>
> Dear All,****
>
> ** **
>
> I have loaded in SGEMS a series of lithofacies realizations which I built
> with plurigaussian approach with another software, each realization being a
> volume of lithofacies coded from 11 to 19 (9 different lithofacies).****
>
> ** **
>
> I want to use the simulation post-processing facilities of SGEMS. It does
> not seem to be fit for categorical variable? Is that correct?****
>
> Consequently, I decided to transform each lithofacies realization into a
> series of 9 indicator volumes (since I have 9 categories) to run the
> post-processing on the indicator volumes, instead running it directly on
> the lithofacies volumes.****
>
> ** **
>
> But I cannot manage with the menu “properties/Create Indicator/user
> defined”  to compute the indicator associated to the  values of the
> categorical variable. When I enter the values “12 13 14…” there is an error
> message telling the thresholds are not appropriate.****
>
> ** **
>
> Could you help me? Is there another way to post-process realizations of a
> categorical variable, than creating associated indicators?****
>
> ** **
>
> Thank you very much,****
>
> ** **
>
> Frédérique****
>
> ** **
>
> *Dr Frédérique FOURNIER*****
>
> E&P Consultancy****
>
> *Beicip-Franlab*****
>
> 232, Avenue Napoléon Bonaparte****
>
> F-92500  Rueil-Malmaison  France****
>
> *E-mail: **fre...@be...*<fre...@be...>
> ****
>
> *Phone: +33 (0)1 47 08 82 29*****
>
> *Fax: +33 (0)1 47 08 81 08*****
>
> ** **
>
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