Does the nprtool normalize inputs for you, or do you have to normalize the inputs before importing them?
1 vue (au cours des 30 derniers jours)
Afficher commentaires plus anciens
Hi
I have a question about the nprtool GUI.
Is it necessary to normalize the inputs before importing them into the tool? or does the tool normalize the inputs for you?
The tool gives you the option to load example data sets, such as iris flowers, wine vintage, types of glass and breast cancer.
The inputs to some of these example data sets do not appear to be normalized. Or are they? I can' tell.
Many thanks
John
0 commentaires
Réponses (1)
Greg Heath
le 1 Août 2012
Modifié(e) : Greg Heath
le 1 Août 2012
Typically, input and target data need to be normalized.
To check for normalization calculate the summary statistics
minmax(input) % Check for identical mins and maxes
mean(input,2) % Check for zero means
std(input,0,2) % Ckeck for unit standard deviations
Hope this helps.
Greg
0 commentaires
Voir également
Catégories
En savoir plus sur Biotech and Pharmaceutical dans Help Center et File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!