Hi,
when dke_ft starts I got thi error: 
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Starting matlabpool using the 'local' profile ... connected to 2 labs.

Start date and time: November 10, 2015 12:32:54
Fiber Tractography with DKI version 1
July 2015
Optimizing kurtosis dODF ~ odf0 @ 0.00 min...Undefined function or variable "idx_fib".
Error in dke_ft (line 217)
MATLAB:UndefinedFunction
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dke works well, DT.mat and KT.mat were created. In (dafulat) ft_parameters.txt I set make_fib_file = 0;

Thanks

Riccardo