[FieldTrip] How to use ft_average_sens?

[Jung, Patrick]

Hello Fieldtrippers,

I get an error message when using ft_average_sens
and couldn't find the solution on the ft homepage.
Here is my short code:

grad_01 = ft_read_sens('Run_01.ds')
grad_02 = ft_read_sens('Run_02.ds')
AvgGrad = ft_average_sens(grad_01, grad_02)

And that's error message:
??? Error using ==> ft_getopt
the first input should contain key-value pairs

Anyone who can help me there?
Thanks and best regards,
Patrick
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