在R中使用动态分配的列名创建data.frame

I need to create a data.frame that will be populated one row at a time by results of a for loop. It has 45 columns: the names of five of these are static but the remainder are read in (as a vector) from an external CSV file at run time. I'm looking for something along the lines ofI need to create a data.frame that will be popu