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How can I effectively pre- process data?

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Olukayode Majekodunmi
关闭： Sam Chak 2025-4-11
I have an input-output dataset to be used in ANFIS modelling. I need to pre-process the data! I've already removed the outliers outside +/-3 standard deviation of the group mean! I've also employed the Moving Average Smoothing technique. The issue here is that the RMSE is still undesirably large! I need a more effective way to pre-process the data!
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Walter Roberson
Walter Roberson 2013-9-1
Perhaps you could give us an example plot or two? I would be interested in original data, then outlier-removed, then smoothed; and, of course, a line showing approximately what your ideal output would be.
http://www.mathworks.com/matlabcentral/answers/7924-where-can-i-upload-images-and-files-for-use-on-matlab-answers
Olukayode Majekodunmi
Olukayode Majekodunmi 2013-9-5
I'm sorry for the delayed response! The two inputs are to be modeled separately with each of the outputs (Sugeno Fuzzy). Here are the download links for the data plots! Figure 1: shows the original data http://www.sendspace.com/file/vsghku Figure 2: shows the data after the outliers have been removed http://www.sendspace.com/file/suiwet Figure 3: plot after applying the moving average smoothing technique http://www.sendspace.com/file/1svdkd Figure 4: after scaling the smoothed dataset http://www.sendspace.com/file/1gs4yi

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