Author Topic: Data preprocessing - Analysis button not-active  (Read 9060 times)

Offline alajdekker

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Data preprocessing - Analysis button not-active
« on: October 08, 2009, 18:37:18 »
Hugin Researcher 7.1:

When using a (EM-learning/Analysis) wizard, I would like to do some data pre-processing (discretization mainly). However, in the Data Preprocessing step I do not seem to have the functionality that the manual would suggest:

1. My Analyse button is inactive, nothing happens when I push it.
2. My drop-down list Preprocess Type, only has "Value Replace" and "External Plug-ins" and not "Exclusion" and "Discretization" as the manual describes?

Any suggestions? Thanks, Andre

Offline Martin

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Re: Data preprocessing - Analysis button not-active
« Reply #1 on: October 09, 2009, 09:39:55 »
Dear Andre

Discretization is only part of structural learning for establishing the node intervals. Once the intervals for a node has been decided, selecting the correct state for a specific numeric data value is trivial.

This means that discretization is not needed as part of analysis wizard and EM learning - as the numeric data are easily mapped to the propper intervals/states.
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