[FieldTrip] Using a condition-average baseline normalization for display of TFR

[Ed Auer]

I am using Fieldtrip to conduct time frequency analyses  on an EEG dataset
that has 2 factors each with multiple levels. I would like be able to
display the data within a factor/level relative to a baseline computed
using the average over levels and factors.
Currently,  to plot relative to the condition/level specific baseline I am
using.
                cfg = [];
                cfg.baseline     = [-0.5  0.5];
                cfg.baselinetype = 'relative';
                cfg.zlim         = 'maxmin';
                cfg.ylim         = [8 12];
                cfg.layout   = 'acticap-64ch-standard2.mat';
                cfg.xlim = [-0.5:0.05:.5];
                cfg.comment = 'xlim';
                cfg.commentpos = 'title';
                f1 = figure;
                ft_topoplotTFR(cfg, GABDCLRtfr)
 Reading through the documentation I do not see any way to specify a
baseline from a different TFR.
Have I missed something or is it necessary to compute the baseline
normalization directly and then plot as absolute data?

Thanks,
--Ed Auer
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