[FieldTrip] Bug in ft_megplanar? (Version 20121209)

[Eelke Spaak]

PS: You might want to take a look at ft_combineplanar, which *does*
work for planar gradient data produced by hardware planar gradiometers
(e.g. Neuromag systems).

On 17 December 2012 17:42, Eelke Spaak <eelke.spaak at donders.ru.nl> wrote:
> Dear clme,
>
> ft_megplanar is designed to compute an approximation of planar
> magnetic gradient based on axial gradiometer data. This approximation
> does not make sense if the data you have is already reflecting the
> planar gradient, as is the case for neuromag306 data. Therefore, this
> is not a bug, but a feature.
>
> Best,
> Eelke
>
> On 17 December 2012 17:22,  <clme at tf.uni-kiel.de> wrote:
>> Hello ft-users,
>>
>> Today I tried to plot planar gradients for neuromag306 data.
>>
>> When calling avgFICplanar        = ft_megplanar(cfg, avgFIC);
>>
>> I get the following error:
>> ??? Error using ==> ft_checkdata at 406
>> This function requires ctf151, ctf275, bti148, bti248, itab153,
>> yokogawa160 or yokogawa64 data as input, but you are giving
>> neuromag306 data.
>>
>> Error in ==> ft_megplanar at 106
>> data = ft_checkdata(data, 'datatype', {'raw' 'freq'}, 'feedback', 'yes',
>> 'hassampleinfo', 'yes', 'ismeg', 'yes',
>> 'senstype', {'ctf151', 'ctf275', 'bti148', 'bti248', 'itab153',
>> 'yokogawa160', 'yokoga
>> Error in ==> reading_fif_planar at 39
>> avgFCplanar        = ft_megplanar(cfg, avgFC);
>>
>> When manually adding ",'neuromag306'" to the senstype in line 106 and
>> commenting out line 297 erverything seems to work as it should.
>>
>> Is this a bug or am I doing something wrong?
>>
>>
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