| T O P I C R E V I E W |
| nicolas1988b |
Posted - 10/31/2017 : 3:06:11 PM
Hi, i need to write an autocorrelation funtion to fit with my data.
the funtion is something like this
G(nu)={(1/(N-nu)*sum(F(i)*F(i+nu),i,i+un)/[((1/(N-nu))*sum(F(j),nu,N)]*[((1/(N-nu))*sum(F(j),j=1,n-nu)]}
where N and nu are positions in a row of random numbers and F(i) is the number in the position i
i can chose nu.
I already have a program that calculates de correlation, the graph is this one:
please help. |
| 1 L A T E S T R E P L I E S (Newest First) |
| yuki_wu |
Posted - 11/01/2017 : 01:29:30 AM
Hi,
I suppose you wanna define a user-defined fitting function. You can refer to these pages, it may help:
http://www.originlab.com/doc/Tutorials/UserDef-FitFunc
http://www.originlab.com/doc/Quick-Help/Summation-DoubleIntegral-Func
Regards,
Yuki
OriginLab
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