Spline and Derivative Pt By Pt

Hi there,
I need to detect the small jumps that shows up at the end of the measured data, see the red line.
Looking at the top graph.
To do so I first fit a spline through the measured data resulting in the white line.
Finally I calculate the derivative of the spline resulting in the green line.
From that green line, one can easily find the peaks.
You may think problem solved
I would say yes in case one has the whole data at once.
I want to do the same while I receive the data point by point, the measured data I mean, the red line.
So I tried the same approach using the PtByPt vi's, but I get nowhere
See the lower graph.
Who can help me out??
Thanks !!
Solved!
Go to Solution.
Attachments:
CSAndDerivative-PtByPt.vi ‏185 KB

How about a simple low pass filter. Even a simple "ptbypt DC estimate" seems to work OK. Of course the data will be shifted according to the ptbypt window size, but you should be able to deal with that.
LabVIEW Champion . Do more with less code and in less time .
Attachments:
CSAndDerivative-PtByPt_MOD.vi ‏320 KB

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Hi ram,
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deleted
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> 1) How to assign the organizational levels for the derived role?
> Say for example, I have to create the derived roles with respect to the plant code.And after inheriting the tcodes ,authorizations from the master role , I noticed a pop up page with organizational level tabulation and I assigned the respective plant code there and in the same way for all the following derived roles.But the rest of the rows like company code,sales organization,distribution channel etc which are seen in the tabulation are left empty.I noticed that all the fields which are left empty in the org.levels of the derived roles are been filled up with the vaules of the corresponding master role org.level values when the derived button icon , which is seen under the authorization tab of master role is pressed.So pls let me know the correct procedure to assign.*Do we really need to maintain org.values for master roles?*
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>
> 3) Is master and derived role tested parallely in the QA system or first master role is tested ,followed by the derived role?
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Post Author: AmitP
CA Forum: WebIntelligence Reporting
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This will be resolved in 2.3.4, to be released later this evening.
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In article <aofo2q$mih$[email protected]>, Justine Thomas wrote:
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<conspiracy_theory>
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========================================
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