hi
I am trying to use the add-on package fdim to calculate fractal
dimesionality of some time series data.
I keep getting an error - trying to run simple example from the help
pages
Error in if (MaxDiff > Chi2) { : missing value where logical needed
when I set the debug option of the function slopeopt()
I get the following read out...
[1] "###############################"
[1] "X="
[,1] [,2]
[1,] -1 -1.000000
[2,] -2 -2.321928
[3,] -3 -3.459432
[4,] -4 -4.523562
[5,] -5 -5.491853
[6,] -6 -6.475733
[7,] -7 -7.426265
[8,] -8 -8.317413
[9,] -9 -8.982994
[1] "Chi2="
[1] 1.642374
[1] "Residual (Ej)="
[1] 0 0 0 0 0 0 0 0 0
[1] "(Ej-EM)*(1/ESS)*(Ej-EM)="
[1] NaN NaN NaN NaN NaN NaN NaN NaN NaN
[1] "MaxDiff="
[1] NaN
something is clearly amiss.
Has anyone encountered/solved this problem ?
Does anyone have any decent code for fractal analysis of time series ?
Any help would be much appreciated.
cheers,
Pat
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