Split rows if the feature column(s) contains multiple items, separated by sep
splitRowsIfMultiFeature(variantsTable, columnNames, sep = ",")variants table (data.table)
a string or a vector of strings that specifies columns need to be checked and splited
separator that is used to seperate items in the column(s)
A new data.table that contains one item in the specified column(s) in each row
splitRowsIfMultiFeature(variants, "Alt"): check column "Alt" to see if any rows have multiple Alt sequences like ATG,TC; if so, split these rows so that one row only has one Alt sequences.