[Eeglablist] Positive "direction" switches between envtopo and erpimage?

[Keith Yoder]

Hi all,
Sometimes it seems that envtopo and erpimage have different conventions for
specifying which direction is positive when generate plots.  For example,
I've attached two images generated from the same dataset.  In
'S01_PCA3.png', the third component is registering as "positive-up" i.e. the
positive topography is oriented towards the top of the head.  However, the
ERP plot for component 3 seems to have switched 'S01_PCA3_ERP_Comp3.png.'
 This has proven to be inconvenient when examining multiple components in
multiple conditions.  Has anyone encountered this before?  Is there a way to
force envtopo and erpimage to produce plots with positive oriented in the
same direction?
Thanks,
Keith
--
Research Aide
Belmonte Autism Lab
Cornell University
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