ggalign attributeThis function extracts data from the ggalign attribute retained in the data
when rendering quad_layout()/ggheatmap() or stack_layout() object. The ggalign attribute holds supplementary
information for input data.
ggalign_attr(x, field = NULL)The specified data from the ggalign attribute or NULL if it is
unavailable.
Input data for the function used to transform the layout data.
A string specifying the particular data to retrieve from the
ggalign attribute. If NULL, the entire ggalign attribute will be
returned. Commonly, this attribute list is attached by fortify_matrix()
or fortify_data_frame() functions (refer to the ggalign attributes
section in the documentation for details). For examples, see
fortify_matrix.MAF().