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Correlation values shown by 'nntraintool -> regression plots' differs when calculated manually for 'dividerand' function

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Kalpesh Patil
Kalpesh Patil 2013-11-19
评论： Kalpesh Patil 2013-11-20
Hello all, I ran my ANN model to train 60 training sets out which 42 were used for training, 9 used for validation and 9 were used for testing. This values were shown in 'nntraintool - > regression plots'. I tried to calculate them manually also and they were matching for divideblock function.
But same thing if I do for dividerand function with same ratio as used above then I am not getting the values of correlation which were displayed in 'nntraintool - > regression plots'.
Please help me regarding how to use dividerand in NN and use appropriate values for model evaluation.
Regards,

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Sean de Wolski
Sean de Wolski 2013-11-19
编辑：Sean de Wolski 2013-11-19
dividerand uses random indices.
From the doc
Divide targets into three sets using random indices
So of course the values will be a little different.

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