TrackSig
will take an input VCF file and corresponding annotation, and determine an eveolutionary trajectory for the sample, based on changepoints found using the PELT segmentation algorithm.
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vcfFile |
path to variant calling format (vcf) file |
activeInSample |
list of signatures names to fit the exposures of. All listed signatures must be present in the referenceSignatures dataframe. |
cnaFile |
path to copy number abberation (cna) file. If not provided, all copy numbers default to 2. |
purity |
number between 0 and 1 of the percentage of cells in the sample that are cancerous |
sampleID |
name to call sample. If none provided, name will be automatically drawn from the provided vcf file name. |
referenceSignatures |
dataframe containing definitions of mutational signatures. |
scoreMethod |
string to indicate what scoring method to apply when finding changepoints. Options are "Signature", "SigFreq" and "Frequency" |
binSize |
number of mutations per bin (default 100) |
nCutoff |
maximum number of total mutations to consider (samples with more than nCutoff muations will be down-sampled) |
desiredMinSegLen |
minimum number of mutations to include in a PELT segment (the desiredMinSegLen will be overridden if there are too few for accurate scoring) |
refGenome |
BSgenome to use as reference |
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