I have used the code provided by Greg in newsgroup. My sample code is here:
Input
clc,clear;
plt=0;
X=load('BOD test.txt');
L=length(X),
net=narnet(1:.1,10);
view(net),
[Xs,Xsi,Asi,Ts] = preparets( net, {}, {}, X );
ts = cell2mat(Ts);
plt = plt+1; figure(plt), hold on
plot( 1:L, ts, 'LineWidth', 2 )
rng( 'default' )
[net tr Ys Es Af Xf] = train( net, Xs, Ts, Xsi, Asi );
view( net )
NMSEs = mse( Es ) /var( ts,1 )
ys = cell2mat( Ys );
plot( 1:L, ys, 'ro', 'LineWidth', 2 )
axis( [ 0 22 0 1.3 ] )
legend( 'TARGET', 'OUTPUT' )
title( 'OPENLOOP NARNET RESULTS')
And the output is:
L =
18
NMSEs =
1.0000
And what's wrong with curve plot:

4 件のコメント

Greg Heath
Greg Heath 2015 年 12 月 26 日

PLEASE DO NOT USE THE NEWGROUP AND ANSWERS FOR THE SAME PROBLEM!!!

Image Analyst
Image Analyst 2015 年 12 月 26 日
With all due respect professor, I'm not against looking for solutions in multiple places. In the real world you need to solve a problem and you cast a wide net to get all possible leads. You might get one lead in one place and a totally different approach in a different place. My manager would never say to me "Solve this problem but only look in one place." He just wants the job done and doesn't care how I get the job done (as long as it's ethical). On the contrary they want us to look in as many places as practical for a solution, which may reveal a better solution or get a workable solution faster. Granted, you're the only neural network expert here so in this particular case he probably won't find any different approaches, but in general I don't think it's a bad idea because different people participate in different forums and that could lead to different approaches.
Yeasir Mohammad Akib
Yeasir Mohammad Akib 2015 年 12 月 26 日
Sir, sorry for my approach. I won't do this again but I was desperate for seeking the answer for my problem. Besides no one is here to solve my problem even if it's my teacher. So I have to seek help from this type of active group. And I think Image Analyst's perspective is right at all.
Greg Heath
Greg Heath 2015 年 12 月 27 日
I understand your point. However, often the descriptions of the same problem from the same poster in the two forums are different.
Consequently I have found myself dizzily ping ponging back and forth between the two.
It is very, very annoying.
Therefore, I will continue, at least for neural nets, to rant my dissatisfaction. However, I will add a neural net qualifier.
Grumpy Greg

サインインしてコメントする。

 採用された回答

Greg Heath
Greg Heath 2015 年 12 月 26 日

0 投票

net = narnet(1:.1,10);
1:0.1 is an error
However, I do not think that you have enough data to do what you wish.
Any further communication should be made via the NEWSGROUP.
Greg

その他の回答 (0 件)

カテゴリ

ヘルプ センター および File ExchangeDeep Learning Toolbox についてさらに検索

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by