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Finding Associations among Histone Modifications Using Sparse Partial Correlation Networks
Figure 4
Effect matrix in CD4+ cells.
The color code represents the difference between the partial correlation coefficient 
and the correlation coefficient 
. The difference 
is given in the lower cell of the corresponding pair. The variable 
that has the largest effect 
is written in the upper cell of the corresponding pair.
doi: https://doi.org/10.1371/journal.pcbi.1003168.g004