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deephar's Issues

attempt to call method 'dim' (a nil value)

Hi,Thanks for your contribution.
But when I want to run your code as your instruction , a error occurred. The print message as follow.

[program started on Tue Apr 24 14:43:15 2018]	
[command line arguments]	
cpu	true	
seed	1234	
learningRate	0.02516758	
maxInNorm	2.283772707	
batchSize	64	
data	../../data/opportunity.h5	
layerSize	179	
testEach	false	
logdir	EXP_brnn	
gpu	0	
maxOutNorm	0	
carryOverProb	0.915735543	
patience	10	
sequenceLength	81	
maxEpoch	150	
minEpoch	20	
numLayers	1	
[----------------------]	
Training epoch: 1	
/home/noil/torch/install/bin/luajit: /home/noil/torch/install/share/lua/5.1/nn/Container.lua:67: 
In 2 module of nn.Sequential:
In 2 module of nn.Sequential:
/home/noil/torch/install/share/lua/5.1/nn/JoinTable.lua:27: attempt to call method 'dim' (a nil value)
stack traceback:
	/home/noil/torch/install/share/lua/5.1/nn/JoinTable.lua:27: in function </home/noil/torch/install/share/lua/5.1/nn/JoinTable.lua:21>
	[C]: in function 'xpcall'
	/home/noil/torch/install/share/lua/5.1/nn/Container.lua:63: in function 'rethrowErrors'
	/home/noil/torch/install/share/lua/5.1/nn/Sequential.lua:44: in function 'updateOutput'
	/home/noil/torch/install/share/lua/5.1/nn/Decorator.lua:10: in function </home/noil/torch/install/share/lua/5.1/nn/Decorator.lua:9>
	[C]: in function 'xpcall'
	/home/noil/torch/install/share/lua/5.1/nn/Container.lua:63: in function 'rethrowErrors'
	/home/noil/torch/install/share/lua/5.1/nn/Sequential.lua:44: in function 'forward'
	main_brnn.lua:162: in function 'opfunc'
	/home/noil/torch/install/share/lua/5.1/optim/adagrad.lua:31: in function 'adagrad'
	main_brnn.lua:178: in function 'train'
	main_brnn.lua:273: in main chunk
	[C]: in function 'dofile'
	...noil/torch/install/lib/luarocks/rocks/trepl/scm-1/bin/th:150: in main chunk
	[C]: at 0x00405d50

WARNING: If you see a stack trace below, it doesn't point to the place where this error occurred. Please use only the one above.
stack traceback:
	[C]: in function 'error'
	/home/noil/torch/install/share/lua/5.1/nn/Container.lua:67: in function 'rethrowErrors'
	/home/noil/torch/install/share/lua/5.1/nn/Sequential.lua:44: in function 'forward'
	main_brnn.lua:162: in function 'opfunc'
	/home/noil/torch/install/share/lua/5.1/optim/adagrad.lua:31: in function 'adagrad'
	main_brnn.lua:178: in function 'train'
	main_brnn.lua:273: in main chunk
	[C]: in function 'dofile'
	...noil/torch/install/lib/luarocks/rocks/trepl/scm-1/bin/th:150: in main chunk
	[C]: at 0x00405d50

about data_preprocessing

I notie that there is no data_preprocessing (e.g normalization) in the implementation. Am i wrong, or it is just unnecessary ?

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