def mergeCufflinksIsoformFPKM(infiles, outfile):
    '''build aggregate table with cufflinks FPKM values.'''
    PipelineRnaseq.mergeCufflinksFPKM(
        infiles,
        outfile,
        identifier="transcript_id",
        tracking="fpkm_tracking")
def mergeCufflinksGeneFPKM(infiles, outfile):
    '''build aggregate table with cufflinks FPKM values.'''
    PipelineRnaseq.mergeCufflinksFPKM(
        infiles,
        outfile,
        identifier="gene_id",
        tracking="genes_tracking")