更新R中data.table中的整行

I have a data.table object in R that has 9,000 columns. My code calculates new values for all 9,000 columns at once and returns a vector of values. I'd like to just replace the row in the data.table with all the values at once. In a dataFrame object this is easy. However, I can't figure out how to get that working in a data.table.I have a data.table object in R that has 9,000