I want to forecast for next period

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abduall hassn
abduall hassn 2015-7-15
评论： abduall hassn 2015-8-31
I read source code of nax neural network on http://in.mathworks.com/help/fuzzy/examples/chaotic-time-series-prediction.html?refresh=true but i dntd find forecasting time series for next period exampl for one month or more or less plz can any one help to get the source for forecasting next period or understanding
thank u

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回答（2 个）

Greg Heath
Greg Heath 2015-7-16
Since you obviously wrote NAX in error, it is not clear whether you meant NAR or NARX. Assuming NAR,
1. Start with the documentation and simple example
help narnet
doc narnet
2. Consider the other NARNET examples
help nndatasets
doc nndatasets
3. Search the NEWGROUP and ANSWERS for relevant posts
NARNET
NARNET tutorial
NARNET greg
NARNET tutorial greg
Hope this helps.
Greg
  1 个评论
abduall hassn
abduall hassn 2015-7-16
Greg sir i am relevant your posts first of all i am sorry of typing mistake means NARX
Greg sir i am relevant your posts but iam getting forecasting next period sir i have network data for 3 years from 2005-2010 i want to forecasting 2011 data this is i want plz if u can explain for me this part thank u sir alot

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Greg Heath
Greg Heath 2015-7-17
2005 to 2010 is 5 years, not 3.
[ I N ] = size(input)% = ?
[ O N ] = size(target)% = ?
Try divideblock with a (4/6)/(1/6)/(1/6) data division over 6 years.
Sounds straightforward using some of my posted code.
Do not use test data to estimate significant lags, number of hidden nodes, etc.
Hope this helps.
Greg
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abduall hassn
abduall hassn 2015-7-23
sir i used autocorrelation function for ARIMA model for determine lags
but, neural network i didnt used autocorrelation function
abduall hassn
abduall hassn 2015-8-31
Bro Greg , i have work as u said 521 + 30. It got good prediction but the problem
How i can upadate the net with last.
And thanking for ur help.

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