I see. How do I check what units are these fields in since all of them are dimensionless? Is the default code units seconds? 

On Tue, 14 May 2019 at 5:40 PM, Matthew Turk <matthewturk@gmail.com> wrote:
Hi,

Do the *values* in the "extra_fields" match?  If so, what is likely
happening is the fields are found, but unknown, and we need to specify
the dimensions in the load.

On Tue, May 14, 2019 at 7:38 AM Vadlamani Samhitha
<vadlamani.samhitha@gmail.com> wrote:
>
> Hi,
>
> Following the commit (https://github.com/yt-project/yt/pull/2259), I am unable to access the field 'particle_age' which I was able to do before. The list of fields I currently have for my RAMSES data is:
>>
>> ('all', 'mesh_id')
>>
>> ('all', 'particle_angular_momentum')
>>
>> ('all', 'particle_angular_momentum_magnitude')
>>
>> ('all', 'particle_angular_momentum_x')
>>
>> ('all', 'particle_angular_momentum_y')
>>
>> ('all', 'particle_angular_momentum_z')
>>
>> ('all', 'particle_cylindrical_velocity_theta')
>>
>> ('all', 'particle_cylindrical_velocity_z')
>>
>> ('all', 'particle_extra_field_1')
>>
>> ('all', 'particle_extra_field_2')
>>
>> ('all', 'particle_extra_field_3')
>>
>> ('all', 'particle_extra_field_4')
>>
>> ('all', 'particle_extra_field_5')
>>
>> ('all', 'particle_identity')
>>
>> ('all', 'particle_index')
>>
>> ('all', 'particle_mass')
>>
>> ('all', 'particle_ones')
>>
>> ('all', 'particle_position')
>>
>> ('all', 'particle_position_cylindrical_radius')
>>
>> ('all', 'particle_position_cylindrical_theta')
>>
>> ('all', 'particle_position_cylindrical_z')
>>
>> ('all', 'particle_position_relative')
>>
>> ('all', 'particle_position_relative_x')
>>
>> ('all', 'particle_position_relative_y')
>>
>> ('all', 'particle_position_relative_z')
>>
>> ('all', 'particle_position_spherical_phi')
>>
>> ('all', 'particle_position_spherical_radius')
>>
>> ('all', 'particle_position_spherical_theta')
>>
>> ('all', 'particle_position_x')
>>
>> ('all', 'particle_position_y')
>>
>> ('all', 'particle_position_z')
>>
>> ('all', 'particle_radial_velocity')
>>
>> ('all', 'particle_radius')
>>
>> ('all', 'particle_refinement_level')
>>
>> ('all', 'particle_specific_angular_momentum')
>>
>> ('all', 'particle_specific_angular_momentum_x')
>>
>> ('all', 'particle_specific_angular_momentum_y')
>>
>> ('all', 'particle_specific_angular_momentum_z')
>>
>> ('all', 'particle_spherical_position_phi')
>>
>> ('all', 'particle_spherical_position_radius')
>>
>> ('all', 'particle_spherical_position_theta')
>>
>> ('all', 'particle_spherical_velocity_phi')
>>
>> ('all', 'particle_spherical_velocity_radius')
>>
>> ('all', 'particle_spherical_velocity_theta')
>>
>> ('all', 'particle_velocity')
>>
>> ('all', 'particle_velocity_cylindrical_radius')
>>
>> ('all', 'particle_velocity_cylindrical_theta')
>>
>> ('all', 'particle_velocity_cylindrical_z')
>>
>> ('all', 'particle_velocity_magnitude')
>>
>> ('all', 'particle_velocity_relative')
>>
>> ('all', 'particle_velocity_relative_x')
>>
>> ('all', 'particle_velocity_relative_y')
>>
>> ('all', 'particle_velocity_relative_z')
>>
>> ('all', 'particle_velocity_spherical_phi')
>>
>> ('all', 'particle_velocity_spherical_radius')
>>
>> ('all', 'particle_velocity_spherical_theta')
>>
>> ('all', 'particle_velocity_x')
>>
>> ('all', 'particle_velocity_y')
>>
>> ('all', 'particle_velocity_z')
>>
>> ('all', 'relative_particle_position')
>>
>> ('all', 'relative_particle_position_x')
>>
>> ('all', 'relative_particle_position_y')
>>
>> ('all', 'relative_particle_position_z')
>>
>> ('all', 'relative_particle_velocity')
>>
>> ('all', 'relative_particle_velocity_x')
>>
>> ('all', 'relative_particle_velocity_y')
>>
>> ('all', 'relative_particle_velocity_z')
>
>
> I tried the 'extra_fields_x' but none of them match with the dimensions of time. Any help is appreciated and thanks.
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