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About P1D derivative() method:
05-13-2014, 11:30 AM
Post: #1
About P1D derivative() method:
Hi,
I have a problem when using P1D derivative() method.

I have a filled P1D instance defined as "P1D p1=new P1D(double[],double[]) " without errors added.

And p1 can be plotted accurately,
but the problem happened when excuting"P1D p2=p1.derivative()" .

This is the wrong message:
java.lang.NullPointerException
at jhplot.P1D.getYupper(P1D.java:4824)
at jhplot.P1D.derivative(P1D.java:5245)
at com.sbl.io.video.ScanTest3.main(ScanTest3.java:134)


I'll be very grateful for your help!
Thanks
ColdWind
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05-14-2014, 11:11 AM
Post: #2
RE: About P1D derivative() method:
Hello,

Yes, this is a bug. In fact, the derivative can be calculate only if there are stat. error on Y, but this is not your case.

I've put this correction to the Beta version v1.8

http://jwork.org/scavis/releases


There is a also a small example in

http://jwork.org/scavis/wikidoc/doku.php...ollections

that make this plot (attached)

   
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05-23-2014, 10:44 AM
Post: #3
RE: About P1D derivative() method:
(05-14-2014 11:11 AM)sergei175 Wrote:  Hello,

Yes, this is a bug. In fact, the derivative can be calculate only if there are stat. error on Y, but this is not your case.

I've put this correction to the Beta version v1.8

http://jwork.org/scavis/releases


There is a also a small example in

http://jwork.org/scavis/wikidoc/doku.php...ollections

that make this plot (attached)

Thank you,Sergei.
Maybe,this is the problem.
But,The "scavis_onejar1.6" used in my JAVA project hasn't been updated.
Can you do something for that?
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