json formatted dictionary of datasets and their paths

genome name in the BSgenome bioconductor package

path to the tab separated file describing the levels in function of datasets

selects the N most significant signatures in samples to express mutational patterns

number of ranks to display for parameter optimization

{"/tmp/tmpmx29tttr/files/000/dataset_2.dat": "F.vcf", "/tmp/tmpmx29tttr/files/000/dataset_3.dat": "G.vcf", "/tmp/tmpmx29tttr/files/000/dataset_4.dat": "H.vcf", "/tmp/tmpmx29tttr/files/000/dataset_5.dat": "I.vcf"}