What is the difference between 'divideblock' and 'divideint'?

In Neural Network Toolbox, what is the difference between 'divideblock' and 'divideint'?

net.divideFcn = 'divideblock';
net.divideParam.trainRatio = 0.6;
net.divideParam.valRatio   = 0.2;
net.divideParam.testRatio  = 0.2;

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net.divideFcn = 'divideint';
net.divideParam.trainRatio = 0.6;
net.divideParam.valRatio   = 0.2;
net.divideParam.testRatio  = 0.2;

And what that means 'divideMode'?

net.divideMode = 'sample';

where 'sample' can be replaced by 'time', 'sampletime', 'all' or 'none'.

Thank you!

Answer 1

[Greg Heath]

Have you tried using the help and doc commands?

Have you tried using simple examples without the ending semicolon?

 help divideblock
 doc divideblock
 [trainInd,valInd,testInd] = divideblock(10,0.6,0.2,0.2)
 help divideint
 doc divideint
[trainInd,valInd,testInd] = divideint(10,0.6,0.2,0.2)

I don't know what sampletime, all or none mean.

However for the creation functions I use

 net1 = fitnet;
 dividemode1 = net1.dividemode
 net2 = patternnet;
 dividemode2 = net2.dividemode
 net3 = selforgmap;
 dividemode3 = net3.dividemode
 net4 = timedelaynet;
 dividemode4 = net4.dividemode
 net5 = narnet;
 dividemode5 = net5.dividemode
 net6 = narxnet;
 dividemode6 = net6.dividemode

Please let us know if you can find creation functions with the other modes.

Hope this helps.

Thank you for formally accepting my answer

Greg

[David Franco]

I found in the documentation:

net.divideMode

This property defines the target data dimensions which to divide up when the data division function is called. Its default value is ' sample' for static networks and ' time' for dynamic networks. It may also be set to ' sampletime' to divide targets by both sample and timestep, ' all' to divide up targets by every scalar value, or ' none' to not divide up data at all (in which case all data is used for training, none for validation or testing).

[Marek Zidek]

divideBlock and divideMode is easy. However, I still cannot understand how divideInt works after using doc, help and fiddling with it.

[Greg Heath]

With divideInt you directly define the integer coordinates for each data division subset.