I use the following command to write data to a .csv file: write.csv(yxz,file="foo.csv") And I get the following in the file, with one column appended to the file: "","fsp","fsec","cincome", "1",0,3,2.25,... "2",0,1,2.75,... "3",1,1,0.625,... Question: is there a way to avoid the first column? Thanks.