Example SummarizedExperiment for ProtPipe workflows
protpipe_example_se.RdA packaged SummarizedExperiment created from
EXAMPLES/basic_example_data/iPSC.csv. The object contains protein-level
abundance measurements and row metadata from the source file. No external
sample metadata are supplied during construction; colData contains a
single differentiation_day column derived from the autogenerated
base_condition values produced by create_se().