Measuring the Richness of the Plant Data

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sakthipriya Associate Join Date: Sep 2011 Posts: 47	Measuring the Richness of the Plant Data 11/20/2014 6:01 AM
	Hi. I just wanted to know is der any measures to check the richness of the data. I mean I know things like outliers, missing data information have to be taken care, i also know about Compressiblity factor. but apart form this, is there anythign like we have to fit a PDfF and we can check by anyway.. The thing that i am looking for this is because I tried ot fit a model for set of 10000 data sets, but my model fit is very less only for some datas and in those data the Compressiblity factor is also very less. i just wanna know how to check whether the data is good/rich enough for system identifcation.. pleas ehelp me with this problem as soon as possible..
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lyn Guru Join Date: Oct 2008 Posts: 42355 Good Answers: 1693	#1 Re: Measuring the Richness of the Plant Data 11/20/2014 8:31 AM
	You aren't talking about: BIODIVERSITY - MEASURING BIODIVERSITY Right? Try here: Scholarly articles for statistical sampling and data quality Data Quality Assessment: Statistical Methods for Practitioner
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sakthipriya Associate Join Date: Sep 2011 Posts: 47	#2 In reply to #1 Re: Measuring the Richness of the Plant Data 11/20/2014 8:45 AM
	hi.. no no.. i am talking about the plant data from process in process control..I want to check my controller is wrking fine or not, for which i need to know the richness of the data.. I have closed loop data stored already in historian, which is taken from the plant..
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lyn Guru Join Date: Oct 2008 Posts: 42355 Good Answers: 1693	#3 In reply to #2 Re: Measuring the Richness of the Plant Data 11/20/2014 9:01 AM
	Try some graphing and trending charts.
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IdeaSmith Guru Join Date: Mar 2012 Location: Out of your mind! Not in sight! Posts: 4424 Good Answers: 108	#4 In reply to #2 Re: Measuring the Richness of the Plant Data 11/20/2014 10:55 PM
	What plant are we talking about? Usually you know if your controller is working by looking at the output of the plant. Can you please describe the problem with a little bit more detail? __________________ Common Sense Dictates
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simonsd Power-User Join Date: Nov 2008 Location: Port Glasgow, Free Republic of Scotland Posts: 360 Good Answers: 30	#5 Re: Measuring the Richness of the Plant Data 11/21/2014 3:48 AM
	I am not sure if they are still in this area but a previous employer http://www.kpsplc.com/ had some quite good stuff for the sort of work I think you are trying to do __________________ Free advice guaranteed or your money back
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IdeaSmith (1); lyn (2); sakthipriya (1); simonsd (1)

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