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I am using a mutation MAF file from GDC.

I want to select for point mutations, therefore I selected Variant_Classification equal to SNP, and Variant_Classification equal to INS and DEL - but in this case I need to check against the size of the indel mutation.

How can I check for point mutations in the indel case? I think I have to work it out through checking the length of the fields in columns Reference_Allele, Tumor_Seq_Allele1, Tumor_Seq_Allele2 but I am not sure if this is the best solution.

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